Aquarium Accessories

Finest Filters stocks a wide collection of aquarium accessories, including aquarium maintenance kits, moss cultivation ceramic platforms (in various sizes) – as well as aquarium thermometers and syphon kits. Our aquarium accessories are totally aquatic safe. You can enjoy free UK shipping with no minimum order quantity, as well as same-day despatch on orders placed before 4pm. Browse our range of aquarium accessories below.

55 Items

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  1. Ista Coral Frag Plugs 10 Pack

    The Ista ceramic coral frag plugs are a perfect size to allow easy fragging of SPS and LPS corals.

    These frag plugs are supplied in a pack of 10.

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  2. Ista Water Plant Cultivation Mesh - 4 Pack

    The Ista water plant cultivation platforms are supplied in a pack of 4, and provide an ideal surface for growing of plants such as java moss.

    These platforms come in a 3 section design, allowing for substrate to be used in the bottom layer, and moss in the centre, with a top cover to prevent the moss from moving while it roots to the substrate.

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  3. Ista Intake Strainers

    The Ista replacement strainers are ideal for replacing a damaged inlet strainer on an external canister filter, or for adding onto a powerhead to prevent fish being pulled into the pump.

    These strainers are supplied in a pack of 2, and we have two different inlet sizes available (10mm internal, 16mm external) or (14mm internal / 18mm external). Please select the required size from the drop down menu when ordering.

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    As low as £5.99
  4. Brine Shrimp / Artemia Incubator & Hatchery Kit

    Our brine shrimp (Artemia) hatchery is ideal for hatching live brine shrimp eggs at home. Live brine shrimp are an ideal food for baby fish or fish that will only accept live foods.

    In order to use the hatchery, a suitable air pump is required. We sell these kits without an air pump, or with an air pump if required.

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    As low as £15.99
  5. Ista Planaria Flatworm Worm Trap

    The Ista glass planaria trap is ideal for catching pest flatworms in your aquarium. This trap has three holes and is ideal for use in both marine and freshwater aquariums.

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  6. Ista Floating Fish Net's (10", 12", 14")

    The Ista range of catch nets are made from a very soft fine material which reduces stress on fish when being captured from the aquarium. These are a very durable style net with ergonomic floating plastic handle.

    Suitable for use in both freshwater and saltwater aquariums.

    These nets are available in three sizes - 10", 12" or 14". 

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    As low as £6.99
  7. Ista CO2 / Air Pipe Holder

    The Ista CO2 Air Pipe Holder set is ideal for preventing kinking of the airline / CO2 tube in the aquarium.

    The pipe holders simply clips onto the rim of the aquarium allowing, you to clip the airline into the smooth bend preventing kinking. This also prolongs the lifespan of the air / CO2 tube.

    Suitable for all 4/6mm tubing. Pack contains two clips and two suction cups.

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  8. Premium Heavy Duty Egg Crate (Red)

    Finest Filters premium heavy-duty egg crate is supplied in convenient sized 26cm x 20cm pieces which can easily be joined using the unique joints moulded to each side. This allows larger pieces and custom shapes to be made to suit your application.

    This egg crate is a much stronger, thicker (14mm) and heavier duty egg crate than our standard range that we offer. This egg crate can also be used with the mounting plugs (sold separately) to raise the egg crate off the bottom of the aquarium.

    Also available in Black, White, Blue or Transparent.

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    As low as £3.69
  9. Ista Pro Stainless Steel 15cm Aquascaping Spring Scissors for Planted Aquarium

    Ista’s Pro Scissors are perfect for accurately trimming aquarium plants. These are made from high quality stainless steel and have spring action making them reopen after cutting. This makes for easy use with one hand and especially in the aquarium.

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  10. Ista Pro Stainless Steel 17cm Aquascaping Curved Scissors for Planted Aquarium

    Ista’s Pro Scissors are perfect for accurately trimming aquarium plants. These are made from high quality stainless steel and the Curved Tip makes it easy to trim in difficult to access area.

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  11. Ista Pro Stainless Steel 17cm Aquascaping Straight Scissors for Planted Aquarium

    Ista’s Pro Scissors are perfect for accurately trimming aquarium plants. These are made from high quality stainless steel with sharpe blades making cutting easy.

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  12. Ista Hydrometer

    The Ista hydrometer provides a quick and easy way to measure the salinity of the water in your marine aquarium.

    High precision and compact design that provides accurate readings that aquarists of any level can understand. Accuracy to 0.001 specific gravity units. This unit has a large numeric display including highlighted 'sweet spot' showing the ideal range for marine and reef aquariums.

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  13. Ista Aquascaping Glue

    Ista aquascaping glue is a completely aquarium safe glue used for attaching plants (including mosses), coral frags, driftwood and other aquascaping decorations in your aquarium.

    Can be used underwater in both fresh and saltwater. This product is very easy to use, and has an instant adhesive effect.

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    As low as £6.99
  14. Ista Glass CO2 Diffuser External Filter Outlet

    The Ista glass CO2 diffusers are a handmade, elegant diffuser that will connect to the outlet of an external canister filter to allow effective dissolving of CO2 into the water column.

    Simply connects to the canister filter outlet tubing, replacing the original filter outlet.

    These diffusers are available to suit either a 12mm or 16mm internal diameter hose.

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    As low as £29.99
  15. External Filter Booster - Add-On Filter (2 Sizes)

    Our external filter boosters are designed to be used alongside an existing external canister filter to quickly and easily increase your filtration volume. These filter canisters do not have a pump, so they are connected into the water exit line on your existing canister filter and pumped through this booster unit.

    These filter boosters are available in two different sizes. The small one holds 1.2 litres, and the large one 2.3 litres. They also have different pipe diameter connections.

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    As low as £19.99
  16. Ista Snail & Pest Trap

    Naturally remove snail infestations from your aquarium without the use of chemicals.

    Trap and bait included

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  17. Ista Moss Cultivation Ceramic Platform - Multiple Sizes

    The Ista ceramic cultivation pads are ideal for cultivating aquatic mosses, and provide an ideal surface for attaching and growth of the moss.

    These cultivation ceramics are available in 4 different sizes. (5cm Square, 6.5cm Square, 5cm Circle or 10cm x 5cm Rectangle). Please select the required model from the drop down menu when ordering.

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    As low as £4.99
  18. Ista Hang-On Breeding Box

    The Ista hang on back breeding box hangs on the back of the aquarium, therefore not occupying space in the aquarium. 

    Simply connects to an air pump to provide constant circulation of aquarium water.

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  19. ATM Mirage Non-Toxic Acrylic & Glass Cleaner

    Mirage acrylic and glass cleaner offers worry free and efficient cleaning of the aquarium display and trim. It is 100% Non-Toxic and nothing cleans, polishes, and maintains the viewing experience of your aquarium quite like Mirage. Mirage, the #1 glass and acrylic cleaner guaranteed to do the job while leaving no streaks, repelling dust, water spots, and fingerprints.

    Bottle size: 8oz (236ml), all with handy spray pump lid.

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  20. Hidom Automatic Fish Food Feeder Dispenser - AF-201

    The Hidom AF-201 automatic digital feeder is ideal for automatically feeding your aquarium up to 4 times per day.

    The feeder has a large high quality LCD screen to allow for easy setting of the feed time and volume to be fed. This feeder also has a unique dampproof design meaning that the feed dispense hole is kept closed when the feeder is not operating to prevent condensation and moisture entering the food. This in turn keeps the fish food fresh inside the feeder.

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  21. Undergravel Aquarium Filter Kit's (Various Sizes)

    Finest Filters Undergravel filter tray – a proven very efficient biological and mechanical filter. Placed underneath the gravel in the aquarium. These interconnecting pieces are ideal for covering all sizes of aquariums, and multiple sets can be used and interlinked for larger aquariums.

    Our undergravel filters are available in 3 sizes – 24 Piece, 28 Piece and 32 Piece.

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    As low as £6.49
  22. Aquarium Pipe Clips with Suction Cups (Pack of 10)

    Pack of 10 x detachable black suction cups with brackets. These quality suction cups provide strong and long lasting adherence to both glass and acrylic aquariums.

    Available in: 6mm, 10mm, 12mm, 16mm, 20mm, 23mm & 28mm size clips.

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    As low as £4.49
  23. Ista 13cm Glass Aquarium Thermometer with Suction Cup
    Rating:
    100 % of 100

    The Ista glass submersible thermometer is a very accurate analogue thermometer for accurately reading the temperature of your aquarium.

    This thermometer comes complete with suction cup for easy mounting inside your aquarium. It has both a degrees Celsius and Fahrenheit scale, and measures between 0 and 40°C. This thermometer measures 13cm long.

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  24. Premium Heavy Duty Egg Crate - Mounting Plugs (10 Pack)

    Stackable mounting plugs to raise the Premium Heavy Duty Egg Crate off the bottom of the aquarium.

    Sold in a pack of 10.

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  25. Ista Aquarium Hose Holder

    The Ista Hose Holder is ideal for securely holding hoses on to your aquarium during water changing. The clip is able to be tightened onto most aquariums and held securely in place to prevent the hose from being removed from the aquarium.

    The clip is compact in size and easy to fasten.

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  26. Ista Hose Adapter / Reducer 16mm - 12mm

    The Ista Hose Adapter is ideal for safely reducing 16mm hose to 12mm (or visa versa), without the worry of leaks.

    The hose fastening nodes secure the hose tightly in place preventing it from being able to be removed without physically unscrewing.

    Suitable for both freshwater and marine aquariums.

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  27. Ista Hang On Glass Aquarium Thermometer (2 Sizes)

    The Ista hang on glass submersible thermometers are a very accurate analogue thermometer for accurately reading the temperature of your aquarium.

    These thermometers simply hang over the side of the aquarium and no suction cup is required to secure the thermometer. It has both a degrees Celsius and Fahrenheit scale, and measures between 0 and 40°C.

    2 Sizes available. Please select from drop down menu.

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    As low as £4.99
  28. Finest Filters Aquarium Fish Nets - Various Sizes

    Our Aquarium Fish Nets are made from super soft Nylon which is suitable for even the most delicate fish.
    Available in 8 sizes, the frame is rust-proof and the handle is encased in PVC.
    *Net section comes sealed for hygiene*

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    As low as £2.49
  29. Ista Vortex Water Flow Accelerator Outlet Nozzle

    Ista Vortex Water Flow Accelerator are made from high quality plastic and can increase the outflow from the filter outlet by up to 400%. This increases the overall circulation in the aquarium, minimising deadspots.

    The Vortex Flow Accelerator has multiple flexible ball joints, allowing you to divert the flow any direction you wish.

    These Vortex Flow Accelerators are available in three BSP sizes; 1/2", 3/4" and 1".

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    As low as £14.49
  30. Inlet/Intake Strainer Pre-Filter Foams Course & Fine

    Pack of 2 intake pre filter foams ideal for use with external canister filter inlets.

    Each foam measures 120mm long, 60mm total diameter and internal hole 15mm diameter. The foams are sealed on one end and open on the other. The hole can be widened for larger intake tubes if required.

    The coarse 25ppi foams are ideal for general use, and the 40ppi are ideal for tanks with very small fish such as fry or shrimp aquariums.

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    As low as £6.99
  31. Quick Release Control Valve's

    These high quality aquarium quick connection valves are ideal for a wide variety of installations, and feature double taps with a quick release, no backflow mechanism.

    Available in 12/16mm or 16/22mm versions.

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    As low as £10.99
  32. Ista Pro Stainless Steel 20cm Aquascaping Wave Scissors for Planted Aquarium

    Ista’s Pro Scissors are perfect for accurately trimming aquarium plants. These are made from high quality stainless steel and the Wave design makes it easy to trim in difficult to access area.

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  33. Ista Hang-On Separation Box

    The Ista Hang On Seperation box is intended to hang on the back of the aquarium, therefore not occupying space in the aquarium.

    Simply connects to an air pump to provide constant circulation of aquarium water.

    It is suitable for breeding fish, rearing baby fry, rearing shrimp, or isolating sick / aggressive fish.

    The box measures 26cm x 14.5cm x 13.5cm (L x W x D). 

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  34. Ista Coral Frag Rack / Multi Function Egg Crate

    The Ista Multi-Function coral rack gives an ideal surface to mount coral plugs when growing coral frags.

    We have these racks available in black and white. Please select the required colour from the drop down menu when ordering.

    Each piece can easily be connected to another piece to allow larger coral racks to be made.

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    As low as £4.49
  35. Premium Heavy Duty Egg Crate (3 Colours)

    Finest Filters premium heavy-duty egg crate is supplied in convenient sized 26cm x 20cm pieces which can easily be joined using the unique joints moulded to each side. This allows larger pieces and custom shapes to be made to suit your application.

    This egg crate is a much stronger, thicker (14mm) and heavier duty egg crate than our standard range that we offer. This egg crate can also be used with the mounting plugs (sold separately) to raise the egg crate off the bottom of the aquarium.

    Available in Black, White or Transparent.

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    As low as £3.69
  36. Premium Heavy Duty Egg Crate (Blue)

    Finest Filters premium heavy-duty egg crate is supplied in convenient sized 26cm x 20cm pieces which can easily be joined using the unique joints moulded to each side. This allows larger pieces and custom shapes to be made to suit your application.

    This egg crate is a much stronger, thicker (14mm) and heavier duty egg crate than our standard range that we offer. This egg crate can also be used with the mounting plugs (sold separately) to raise the egg crate off the bottom of the aquarium.

    Also available in Black, White, Red or Transparent.

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    As low as £3.69
  37. 60cm Aquarium Fish Tank Long Reach Tongs Grabbers Planted Tank Reptile

    Our high quality aquarium tongs are 60cm long, and are an ideal tool for any aquarist for aquarium maintenance.

    These tongs are very easy to use, and are ideal for freshwater and marine aquariums alike.

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  38. Dual Aquarium Net Breeder Hatchery Isolation Chamber for Fish Tank

    Our dual chamber aquarium net breeders are ideal for separating and protecting newly born fish.

    This hatchery measures 250mm x 150mm x 150mm.

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  39. Aquarium LCD Stick On Aquarium Thermometer

    Our high quality stick on thermometers are ideal for proving a quick reference of the temperature in your aquarium. These thermometers measure in degrees Celsius.

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  40. BOYU ZW-82 Automatic Fish Food Feeder Timer

    You are purchasing a high quality BOYU ZW-82 Automatic Fish Food Feeder / Food Timer.

    This feeder can be set up to automatically dispense fish food to your aquarium at set intervals.

    This feeder can be set for 1 or 2 cycle feeding mode, which can control the feeding amount to the aquarium. The dispensing amount is also adjustable.

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  41. Handheld Salinity Refractometer for Marine Aquarium

    You are purchasing a high quality refractometer for testing the salinity of your marine aquarium water.

    This refractometer comes complete with hard carry case, pipette for water sample, calibration screw, cleaning cloth and instruction manual.

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  42. 155cm External Filter Pipe Cleaning Brush

    155cm long pipe cleaner brush suitable for cleaning external canister filter pipes. Over time waste can build up in the canister filter pipes, reducing the water flow. Periodic cleaning of the pipes can maximise the water flow and keep your external filter running at its best.

    This pipe cleaner comes with two brush heads to suit external filters with a pipe diameter of up to 19mm in size.

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  43. Aquarium 5 In 1 Cleaning Set (Fish Net, Rake, Scraper, Plant Fork, Sponge)

    Aqua Tools 5 in 1 aquarium set. This convenient set comes with 5 interchangeable heads to allow for a range of maintenance tasks to be completed in your aquarium.

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  44. 9 Way Acrylic Coral Frag Rack With Plugs - Magnetic Mount

    The Finest Filters coral frag rack is available in a choice of two sizes to hold either 9 coral plugs or 12 coral plugs.

    This 9 plug holder coral rack measures 170 x 110mm in size.

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  45. 12 Way Acrylic Coral Frag Rack With Plugs - Magnetic Mount

    The Finest Filters coral frag rack is available in a choice of two sizes to hold either 9 coral plugs or 12 coral plugs.

    This 12 plug holder coral rack measures 260 x 110mm in size.

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  46. Hidom Large Aquarium Fish Breeding Box Fry Tank Hatchery - BX-001

    These breeding traps are great for fish to breed in, isolating agressive (e.g betta splendens) or weak/injured fish or for pregnant live bearers to give birth to their baby fry in.

    This model is 205mm long x 100mm wide x 92mm deep (comes with extra partition to separate 2 weak/aggressive/pregnant fish)

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  47. Hidom Small Aquarium Fish Breeding Box Fry Tank Hatchery - BX-002

    These breeding traps are great for fish to breed in, isolating agressive (e.g betta splendens) or weak/injured fish or for pregnant live bearers to give birth to their baby fry in.

    This model is 125mm long x 70mm wide x 72mm deep.

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  48. Hidom Medium Aquarium Fish Breeding Box Fry Tank Hatchery - BX-003

    These breeding traps are great for fish to breed in, isolating agressive (e.g betta splendens) or weak/injured fish or for pregnant live bearers to give birth to their baby fry in.

    This model is: 100mm long x 70mm wide x 130mm deep.

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  49. Hidom AF-101 Aquarium Automatic Holiday Fish Food Feeder Dispenser Timer

    The Hidom AF-101 Automatic Fish Food Feeder can be set to feed your aquarium either every 12 or 24 hours. This is a very easy to use automatic feeder and can be set up easily without any fuss.

    The feeder is suitable for use with flake, pelleted and freeze dried food, and is ideal for holidays and busy schedules!

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  50. Flexible Tubing Valve External Filter Pipe Adjustable - Multiple Sizes

    Replacement in line tubing valves suitable for either 12mm internal or 16mm internal diameter hose

    Simply push the pipe onto the end of these valves and tighten the locking nut. The flow can then be reduced or stopped completely using the valve on the top.

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    As low as £2.99
  51. 5.5" Coral Cutter Pliers Propagation Frag Scissors
    5.5 Inch Coral Propagation Cutters. These cutters have a very sharp blade which is ideal for propagating SPS and LPS corals. Learn More
  52. Aquarium Plant Scissors Planted Fish Tank Multiple Sizes and Shapes

    High quality stainless steel planted aquarium maintenance scissors.

    An essential tool for any planted aquarium enthusiast. These scissors allow for easy maintenance and pruning of aquarium plants. We have two sizes available - 15cm and 25cm long. Please select the size required. We also have straight, curved and wave shape scissors available. Please select the type required from the drop down menu when ordering.

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    As low as £5.99
  53. Egg Crate 30cm x 15cm Aquarium Fish Tank Coral White or Black

    Finest Filters egg crate is supplied in convenient sized 30cm x 15cm pieces which can easily be joined together using the unique tongue and groove joints moulded to each side. This allows larger pieces and custom shapes to be made to suit your application.

    Each piece is approximately 30cm x 15cm x 7mm thickness.

    Please Note: The hole size varies depending on Colour:

    Black Hole is 15mm x 15mm

    White Hole is 6mm x 6mm

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    As low as £2.69
  54. 2 Pack Replacement Aquarium Heater Suckers Suction Cups With Bracket

    Pack of 2 x replacement suction cups and clips suitable for aquarium heaters.

    High quality suction cups - larger than most replacements, so they will stick for longer. Suitable for use with most brands of aquarium heater.

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  55. Aquarium Fish Tank Heater Guard with Suction Cups Fits 25w to 300w

    Universal aquarium heater guard for use with heaters from 25w to 300w. Size is easily adjusted to accommodate most heaters.

    Using a heater guard protects sensitive fish from injury when the aquarium heater is operating. The heater guard also helps to prevent accidental damage the heater itself.

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55 Items

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