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.

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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 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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  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. 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
  5. 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 £17.99
  6. 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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  7. 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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  8. Ista Shrimp Feeding Dish

    The Ista shrimp glass feeding dish is the ideal way to feed shrimp and other inverts in the aquarium.

    Using the dish prevents shrimp food from falling into the substrate and  breaking down before being eatten and effecting the water quality.

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  9. 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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  10. 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
  11. 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
  12. 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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  13. 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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  14. 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
  15. Ista Snail & Pest Trap

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

    Trap and bait included

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  16. 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
  17. 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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  18. 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
  19. Aquarium Partition Divider Bracket with Suction Cups - 2 Pack

    You can easily divide your tank into several compartments with these divider holders. Handy clips to divide a bigger fish tank into several compartment for breeding or separation.

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  20. Aquarium Partition Divider Bracket with Suction Cups - 4 Pack

    You can easily divide your tank into several compartments with these divider holders. Handy clips to divide a bigger fish tank into several compartment for breeding or separation.

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  21. Aquarium Partition Divider Bracket with Suction Cups - 6 Pack

    You can easily divide your tank into several compartments with these divider holders. Handy clips to divide a bigger fish tank into several compartment for breeding or separation.

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  22. Aquarium Partition Divider Bracket with Suction Cups - 8 Pack

    You can easily divide your tank into several compartments with these divider holders. Handy clips to divide a bigger fish tank into several compartment for breeding or separation.

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  23. Aquarium Partition Divider Bracket with Suction Cups - 10 Pack

    You can easily divide your tank into several compartments with these divider holders. Handy clips to divide a bigger fish tank into several compartment for breeding or separation.

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  24. Aquarium Partition Divider Bracket with Suction Cups - 12 Pack

    You can easily divide your tank into several compartments with these divider holders. Handy clips to divide a bigger fish tank into several compartment for breeding or separation.

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  25. Ista LCD Digital Aquarium Thermometer

    The Ista submersible LCD digital thermometer provides a very accurate reading of the temperature within your aquarium.

    This thermometer comes complete with suction cup for easy mounting inside your aquarium. It is capable of measuring between 0 and 50°C with a resolution of 0.1°C. The thermometer has a measuring cycle of 10 seconds.

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