Search  for anything...

AQUANEAT 6-Pack Pre-Filter Sponge for Aquarium Shrimp Fry Fish Tank Filter 0.8” Intake, Replacement Foam Cover

  • Based on 2,243 reviews
Condition: New
Checking for the best price...
$5.98 Why this price?
Save $4.01 was $9.99

Buy Now, Pay Later


As low as $1 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Aug 20
Order within 4 hours and 29 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Size: 1.8"D X 3.2"H, 0.8"


Features

  • Dimension: 8x4.5cm/3.2 x1.8, the inside hole diameter is 2cm/0.8; for a snug fit, check the size you need carefully before placing an order. The sponge's inner diameter accommodates filter intake within 0.8-1 inches (2025.4 mm) due to its elastic properties.
  • Lifesaver: Keeps baby fish, shrimp, and snails from getting sucked into hob filters, power heads or canister filters by simply putting a pc of this pre-filter sponge over the intake.
  • Improve Filtration: Does a good job in catching flake fish foods, plants and any other large particles floating in the water keeping the tank cleaner and last longer between cleanings.
  • Maintenance: Rinse the sponge roll periodically based on the bio load of your aquarium tank. The material holds up well to being rinsed and reused and allows great water flow.
  • Includes: 6 pcs of pre-filter sponge (Note: The hole doesn't go all the way through the sponge. They come flattened in a vacuum bag; just unpack and rinse them and these sponge filters will puff up to normal shape and size.)

Description

Key Feature: The filter intake sponge cover is a great baby fish saver to protect your lovely little aquarium critters from being sucked in This pre-filter sponge also can be used to dampen the outflow and make the water more stable for your betta. The cylinder sponge foam prolongs the life of the pump unit and boosts mechanical filtration by keeping solid waste from getting into filters. This prefilter sponge provide both mechanical and bio filtration It is recommended to rinse the sponge roll periodically based on the bio load of your aquarium tank, as it will get dirty over the time and may restrict the water flow of the filter. Package includes: 6 pcs of prefilter sponge

Package Dimensions ‏ : ‎ 6.42 x 5.79 x 0.63 inches; 1.06 ounces


Date First Available ‏ : ‎ July 1, 2022


Manufacturer ‏ : ‎ AQUANEAT


Best Sellers Rank: #2,781 in Pet Supplies (See Top 100 in Pet Supplies) #7 in Aquarium Filter Accessories


#7 in Aquarium Filter Accessories:


Customer Reviews: 4.5 4.5 out of 5 stars (2,243)


Item Weight: 1.06 ounces


Manufacturer: AQUANEAT


Date First Available: July 1, 2022


Item Package Dimensions L x W x H: 6.42 x 5.79 x 0.63 inches


Brand Name: AQUANEAT


Target Audience Keyword: Fish


Size: 1.8"D X 3.2"H, 0.8"


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Very good product. It does exactly what I expected it to do.
Size: 1.8"D X 3.2"H, 0.8"
I want to write this review because this produce is doing a fantastic job in my reed aquarium. I have this installed on my intake for my hang on the back protein skimmer while I am fighting a lot of algae. No algae makes it past these guys - these are like algae blocking juggernauts. Get them out of the package, rinse them off well, they're durable and easy to use. I have nothing buy satisfaction with this product. When they clog, remove it and reinstall one that was in use previously that you rinsed the algae out of and cleaned thoroughly and you're good to go for as long as it takes to clog it again. If you buy one, I hope you're as satisfied as I am. ... show more
Reviewed in the United States on May 8, 2026 by DR

  • Works Great — Perfect for Shrimp and Fry
Size: 1.6"D X 2.8"H, 0.6"
These little sponges ended up being exactly what I needed. I was just trying to keep baby guppies and shrimp from getting sucked into my canister filter, and this did the trick without messing with the flow too much. It slid right over the intake — no trimming or forcing it on — and it fits snug enough to stay put without zip ties or anything. The sponge itself is a good balance: fine enough to keep the small stuff out, but not so dense that it slows down water flow or clogs every few days. I’ve already seen my shrimp hanging around on it picking off bits, and the fry seem to like the calmer flow near it too. Cleaning it is pretty easy — I just give it a squeeze in tank water during water changes and it’s good as new. Still looks solid after a few rinses. What I liked: - Perfect fit, no cutting or fiddling - Actually works for small shrimp and fry - Doesn’t mess with the filter flow - Rinses out easily and holds up well Nothing fancy, but it solves the problem without hassle. If you're running any kind of tank with tiny swimmers, this is a simple add-on that just works. ... show more
Reviewed in the United States on June 9, 2025 by Ray C.

  • Worth the price for how many you get.
Size: 1.8"D X 3.2"H, 0.8"
Fits a majority of my filter intakes from 10-70 gallon filters. They come vacuum sealed so you have to soak them before you install them. They are good at keeping large particles from getting into your filter media. You can also zip tie one to some tubing when doing large water changes if you don't want too much suction/if your afraid of sucking up small fish. ... show more
Reviewed in the United States on May 30, 2026 by Amazon Customer

  • Great but sizing is off!
Size: 1.8"D X 3.2"H, 0.8"
Bought these to cover my TopFin 30g HOB Powerfilter to help keep my neocaridina shrimp from being sucked up. It does lower the flow rate a little but otherwise filter still works fantastic, and my shrimp no longer can get accidentally sucked up! Fairly easy to clean off any trapped debris as well, just gently shake in the tank or rinse. My only complaint is the sizing is off. I bought the suggested size for my filter intake, even measured to be safe, and as you can see in my photo it was far too short and did not cover everything so I had to splice 2 together, so not the greatest fit and was a bit frustrating. Only reason I'm not giving 5 stars. I suggest sizing up a size or two from what you think you need. Other than that, no complaints! ... show more
Reviewed in the United States on June 29, 2026 by Dove Bear

  • Nifty little things
Size: 1.8"D X 3.2"H, 0.8"
Works for my canister filter intake, making sure my baby fish aren't sucked up inside the intake! Highly recommend. They last a long time too. I still have 3 of the 6 I bought.
Reviewed in the United States on June 30, 2026 by Beth Mitchell

  • Fit Top Fin Silenstream 5-10gallon Filters
Size: 1.8"D X 3.2"H, 0.8"
I got these to to put over the intake of my Topfin Silenstream filter. It's the 5-10gallon one and it fits great. It's small enough that it doesn't slip off but still easy to put on. I didn't have any problems with it getting dunked up too fast and I went 2 weeks without rinsing it multiple times with no problem. I accidentally order 2packs so I cut some in half to baffle to outflow and they also worked great there. They seem durable and have lasted being squeezed many times. ... show more
Reviewed in the United States on July 3, 2026 by Rodriguez

  • Good
Size: 1.8"D X 3.2"H, 0.8"
Fits good, collects food and stuff saving the filter. Doesn't really slow the flow.
Reviewed in the United States on June 22, 2026 by Lu M.

  • Would recommend
Size: 1.8"D X 3.2"H, 0.8"
There good kinda to big for intake tube but the suction holds it on , but it does the job well , thanks
Reviewed in the United States on March 22, 2026 by Unknown1

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...