Top Fin · 32 products
Top Fin Aquarium Supplies: Filter Cartridges, Pumps, Heaters and Food
Refills sorted by filter model, pumps and heaters sorted by gallons, food sorted by fish.
Refills and gear to start with
Top Fin Silenstream PF-L Large Filter Cartridges
Silenstream PF-L cartridges, 6 large, for PF20, PF30, PF40 and PF75.
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Top Fin Compact Aquarium Heater, 5-10 Gallon
Compact 50 watt heater for 5-10 gallon aquariums, preset at 78 degrees F.
Check price on AmazonTop Fin Air-2000 Aquarium Air Pump
Air-2000 air pump for aquariums up to 40 gallons.
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Top Fin Color-Enhancing Tropical Flakes, 1 oz
Color-Enhancing Tropical Flakes in a 1 ounce pack.
Check price on AmazonTop Fin filter cartridges by filter model
Replacement cartridges and media for Silenstream PF, Retreat RF, Element EF, CN corner and IF internal filters, plus the PRO50 media pack and a cut-to-fit fiber pad. Every refill is sized to a specific filter, so the model printed on your filter decides the pack. This is the line you reorder every few weeks; the pumps and heaters next door are bought once per tank.
Top Fin Silenstream PF-L Large Filter Cartridges
Large activated carbon cartridges for Silenstream power filters on bigger tanks.
- 6 large PF-L cartridges
- Activated carbon media
- Fits Silenstream PF20, PF30, PF40 and PF75
- Dimensions 6.5 x 4.5 in
- Rinse under cool water before use
Top Fin Silenstream PF-S Small Filter Cartridges
Small PF-S refill cartridges sized for the Silenstream PF10 power filter.
- PF-S small filter cartridges
- 6 count
- Refill for Silenstream PF10 power filters
- Size: 5.5in x 3.1in
- Model 59887
Top Fin Retreat RF-L Filter Cartridges 6-Count
Large Retreat cartridges with coconut shell carbon for a 6 month supply.
- 6 RF-L cartridges, 6 month supply
- Coconut shell activated carbon
- Dimensions: 7.9 in L x 2.7 in W
- Color: White
- Change every 3-4 weeks
Top Fin PRO50 Power Filter Media Pack
Four-part media refill for the Top Fin PRO50 power filter.
- Size: PRO50
- 1 bag of ceramic rings
- Filter sponge and pre-filter sponge
- Activated carbon bag
- Materials: ceramic, sponge, carbon
All filter cartridges 10 items
Aquarium air pumps, heaters and airline valves
Three air pumps rated by tank size, three compact submersible heaters preset at 78 degrees F, and two airline fittings: a check valve and a brass T-valve. Gallon ratings are the deciding number here, not a filter model. These pieces stay in the tank for years, unlike the cartridges that rotate through monthly.
Top Fin Air-1000 Aquarium Air Pump
Small air pump for aquariums up to 20 gallons and their bubblers.
- For aquariums up to 20 gallons
- Runs air stones, bubble walls and decor
- Airline tubing sold separately
- Color: Black, Gray
Top Fin Air-3000 Aquarium Air Pump
Larger air pump for aquariums up to 75 gallons with multiple accessories.
- For aquariums up to 75 gallons
- 3 liters per minute per outlet
- Runs air stones, bubble walls and decor
- Airline tubing sold separately
- Item 5148678
Top Fin Compact Aquarium Heater, 10-20 Gallon
Submersible heater preset to 78 degrees F for 10-20 gallon aquariums.
- Sized for 10-20 gallon aquariums
- Preset at 78 degrees F
- Shatter-resistant quartz glass body
- Auto shut-off
- On/off light indicator
- 2 suction cups included
Top Fin Aquarium Check Valve for Airline
Inline airline valve that stops water from siphoning back toward the pump.
- 1 check valve
- Fits airline tubing
- Color: Black, Clear
- Item 5098160
All pumps and heaters 8 items
Top Fin fish food for tropicals, goldfish, bettas and cichlids
Flakes, pellets, freeze-dried bloodworms and sinking wafers, each made for a particular kind of fish. Goldfish, betta, tropical and cichlid foods are separate products, and plecos get their own thin wafers that drop to the bottom. Pick by species and by where your fish feed in the water column.
Top Fin Goldfish Color-Enhancer Flakes, 1 oz
Goldfish flake food with added vitamin C in a 1 oz container.
- 1 oz (28.3 g)
- Flake food for goldfish
- Added vitamin C
- Does not cloud water
Top Fin Betta Pellet Fish Food, 1 oz
Daily pellet food for betta fish in a 1 ounce pack.
- 1 ounce
- Pellet food for bettas
- High protein
- Vitamin C added
Top Fin Thins Sinking Wafers for Plecos
Thin sinking spirulina wafers for plecos and other bottom feeders.
- 1.5 oz (42.5 g)
- Thin sinking wafers
- Contains spirulina algae
- Resealable bag
Top Fin Color-Enhancing Medium Cichlid Pellets
Medium-size pellet food for cichlids in a 5.99 ounce container.
- 5.99 ounce (170 g)
- Medium pellets for cichlids
- Fish protein
- Contains vitamin C
All fish food 8 items
Aquarium decorations and artificial plants
Silk and plastic plants in 8.5, 12 and 18 inch heights, a pink coral cave, a driftwood-style ornament and a stone and coral bubbler. None of it needs light, fertilizer or trimming. Tank height matters more here than gallons, so check it against the plant height before ordering.
Top Fin Purple Silk Plastic Plant, 18-Inch
Tall 18-inch purple silk plant for filling the back of a tank.
- 18 in tall
- Purple silk leaves
- Plastic aquarium plant
- 1 plant per pack
Top Fin Pink Coral Cave Aquarium Decoration
Pink coral cave that sits on the substrate as a hideout for fish.
- Pink coral cave decor
- Size: 6 x 4 x 3.5 in
- Floor mount
- Item 5340225
Top Fin Stone & Coral Bubbler Ornament
Stone and coral bubbler ornament that brings movement and color to a tank.
- Stone and coral bubbler ornament
- Color: Multicolor
- 1 ornament
Top Fin Glow Plastic Aquarium Plant, Green/Orange
Plastic aquarium plant that glows green and orange under blue lighting.
- Glows under blue lights
- Green and orange coloring
- 8.5 in tall, 7 in wide, 3 in deep
- Plastic construction
- Model TF-16-923
All aquarium decor 6 items
What sets the Top Fin range apart
One refill code per filter
Cartridges carry the filter family in their name: PF-S for the Silenstream PF10, PF-L for the PF20 through PF75, CN-S for the CN10 corner filter, CN-L for the CN20. The letters S, M and L mark size within a family, so a single glance at the box tells you whether it fits.
Multi-stage media in a single cartridge
The IF-M internal cartridge stacks four layers: a filter sponge and fibers for debris, activated carbon for chemical filtration, zeolite for ammonia removal and ceramic granules for biological filtration. The PRO50 pack splits the same idea into separate parts, with ceramic rings, two sponges and a carbon bag.
Heaters preset to 78 degrees F
The compact submersible heaters arrive set at 78 degrees F, with a shatter-resistant quartz glass body, auto shut-off and an on/off light indicator. There is no dial to adjust. That keeps setup short, and it also means the heaters suit tropical tanks rather than tanks that need a different temperature.
Food split by species, not one flake for all
Tropical, goldfish and betta flakes are three separate tubs, and goldfish, betta and cichlid pellets are separate again. The goldfish and tropical flakes and the goldfish pellets are made so they do not cloud water, and most of the line carries added vitamin C.
Carbon, ceramic, sponge and quartz: what the range is made of
Most cartridges are built around activated carbon, which pulls odors, pigments and organic waste out of the water. The Retreat RF-L version uses coconut shell carbon. Carbon also absorbs medications, so pull carbon cartridges out while any medication is in the water and put them back afterwards. Rinse new PF-L cartridges under cool water before use, so loose carbon dust does not leave a cloudy tank after the swap.
Ceramic rings and granules are the biological layer. When a carbon cartridge or sponge is replaced, the ceramic media can stay in place, so the filter does not start over from bare media while you are cycling a new aquarium. The universal fiber pad is a 20 x 18 in sheet that is cut to fit and replaced every 4-6 weeks.
Decor is silk or plastic and needs only a rinse in plain tank water when algae builds up. The heaters use shatter-resistant quartz glass and hold on with 2 suction cups; unplug a heater before lifting it out of the water.
| Filter media | Activated carbon, coconut shell carbon, zeolite, ceramic granules and rings, sponge, fiber |
|---|---|
| Retreat RF-L change interval | Every 3-4 weeks |
| Fiber pad change interval | Every 4-6 weeks |
| Heater body | Shatter-resistant quartz glass |
| Heater preset | 78 degrees F |
| T-valve | Brass, 1.25 in L x .75 in W |
| Plants | Silk and plastic, 8.5 in, 12 in and 18 in tall |
Running low on cartridges?
Find the refill pack that matches your filter model, from 2-count to 12-count supplies.
Match your filterWhich Top Fin setup fits your tank
A betta on a desk
Small desktop tanks often run a BFS Bettaflo or Element filter. The EF-S 12-pack covers a year of changes in one box, and the 0.81 oz betta flakes or the 1 ounce betta pellets keep feeding simple. Bloodworms work as an occasional extra, not a daily meal.
Setting up a 10 gallon starter tank
A 10 gallon tank sits at the top of the 5-10 gallon heater range and the bottom of the 10-20 gallon one. The 50 watt Top Fin Compact aquarium heater for 5-10 gallons is the closer match for a standard 10. An Air-1000 covers tanks up to 20 gallons.
A goldfish tank that produces a lot of waste
Goldfish tanks load a filter quickly, so a carbon cartridge on a set schedule makes the difference between clear and murky water. Pair the CN-L or PF-L refills with goldfish flakes or the 2.2 oz goldfish pellets, both made so they do not cloud water.
A larger community tank with bottom feeders
Tanks up to 75 gallons can run several air stones from one Air-3000, with a brass T-valve splitting the line. Plecos, catfish and loaches feed on the floor, so the sinking Thins wafers go in alongside the tropical flakes the mid-water fish take.
About this Top Fin catalogue
This guide covers 32 aquarium products sold under the Top Fin name, grouped into four lines: filter cartridges and media, air pumps and heaters, fish food, and decor. It is an independent catalogue, not the brand's own site.
The range is built around freshwater home aquariums from 5 to 75 gallons. Refills cover the Silenstream PF, Retreat RF, Element EF, CN corner, IF internal and PRO50 filters, which makes the cartridges the part most readers come back for.
Sizes, counts, compatible models and gallon ranges appear exactly as the packaging gives them. If you know your filter model and tank size, those two facts are enough to choose from the whole range.
Cartridges, pumps, heaters and food: buying questions
Which Silenstream refill fits your filter, PF-S or PF-L?
How often should an aquarium filter cartridge be changed?
Which heater suits a 10 gallon aquarium?
Does an air pump come with airline tubing?
Do CN-S and CN-L corner cartridges swap between filters?
Will the 18-inch silk plant fit your tank?
Compare Top Fin filter refills side by side
Count, fit and media for each cartridge pack, so you can match the refill to the filter you already own.
| Top Fin | Product | Fits | Count | Media | Check price on Amazon |
|---|---|---|---|---|---|
| Top Fin Silenstream PF-S | Silenstream PF10 | 6 | Filter cartridge | Check price on Amazon | |
| Silenstream PF-L by Top Fin | PF20, PF30, PF40, PF75 | 6 large | Activated carbon | Check price on Amazon | |
| Top Fin Retreat RF-L 6-Count | Large Retreat filters | 6, 6 month supply | Coconut shell carbon | Check price on Amazon | |
| Top Fin Element EF-S 12-Pack | BFS Bettaflo, Element | 12, 12 month supply | Activated carbon | Check price on Amazon | |
| CN-S corner refill from Top Fin | CN10 corner filter | 6 | Filter cartridge | Check price on Amazon | |
| Top Fin CN-L corner cartridges | CN20 corner filter | 3, 3-month supply | Sponge with activated carbon | Check price on Amazon | |
| Top Fin 4-in-1 IF-M | IF40 internal filter | 2 medium | Sponge, carbon, zeolite, ceramic | Check price on Amazon | |
| PRO50 media pack, Top Fin | PRO50 power filter | 4-part pack | Ceramic rings, sponges, carbon bag | Check price on Amazon |
Guides to read before you buy
Best ofBest Aquarium Filter for Small Tanks: 7 Picks for 5 to 30 Gal
Best aquarium filter for small tanks: Tetra, Fluval, Marina, Aqua-Tech, FZONE, Devopet and NICREW compared by listed tank size, flow, noise and media.
Best ofBest Aquarium Filter Media: 7 Picks From Top Fin, Fluval and More
Best aquarium filter media from Top Fin, Fluval, MarineLand and Pawfly: ceramic rings, foam, carbon, fiber pads and cartridges matched to your filter.
Best ofBest Fish Tank Bubbler: 7 Air Pumps, Kits and Bubbling Decor
Best fish tank bubbler picks: Top Fin air pumps, a Pawfly nano kit, AQQA and AQUANEAT air sponge filters and Penn-Plax bubbling decor, by listed specs.
Best ofBest Hang On Back Filter: 7 Picks From Fluval, Seachem and More
Best hang on back filter picks for 20 to 70 gallon tanks from Fluval, MarineLand, Seachem, Aqua-Tech, AQQA and Calelin, by listed range, media and noise.
Best ofBest Small Aquarium Heater: 6 Picks for 2 to 30 Gallon Tanks
Best small aquarium heater picks from Aqueon, hygger, Tetra and Top Fin for 2 to 30 gallon tanks, compared by listed tank size, wattage and controls.
ComparisonTop Fin vs Aqueon Heaters: Preset vs Adjustable for 20 to 30 Gal
Top Fin vs Aqueon: the Top Fin 20 to 30 gallon preset heater against the adjustable Aqueon Pro 100, plus larger Aqueon sizes, by listed specs.
Match the refill to the filter, the heater to the gallons
Top Fin filter cartridges for Silenstream, Element, corner and internal filters, air pumps, compact heaters, fish food and aquarium decor. Check the filter model, tank size and today’s price on Amazon.