Pre-Filter Sponge,4 Pack Aquarium Pre Filter Foam Rolls Compatible Filter Accessories for Fish Tank

Stopped my fish from getting sucked onto the filter and dying. Just make sure to keep it clean

I am using these on a https://www.amazon.com/AquaClear-Power-Filter-70-Gallon-Aquariums/dp/B000260FUW/ref=cm_cr_arp_d_product_top?ie=UTF8. I had to replace the filter after a week of use due to a leak. These intake pre-filters do not come with that product but I wanted this product to filter out the bigger particles so it could extend the life of my filter. I rinsed this product before I put it into use (water ran clear) and when I changed from one filter that was defective to the replacement I wanted to use this again since it was only a week old. I removed the larger particles and decided to rinse this intake filter. When I did there was a ton of black particulate matter that rinsed out. I had to rinse it 3-4 times before it came clean. When I looked at my aqua clear foam insert it was almost perfectly white and when I rinsed it the water ran clear. the Aqua Clear AquaClear Foam Filter Inserts, 3 Pack is about $9 and change. the HuYaYa Pre-Filter Sponge,4 Pack is $6-7. that is a great value and a much easier replacement than the aqua clear filter but that means that my water will be cleaner and my costs will be less over the long term. This fits the aqua clear intake tube perfectly and it is quite durable and easy to install and remove for cleaning. There might be better products out there for the intake pre-filter but this one seems to work quite well!

This keeps my tank pretty clean the water is almost clear probably because that happens with fish water it’s not always clear but almost clear like it looks crystal clear from the front, from the side cloud-ish bit to be real I believe this keeps it clear yeah yeah yes or no answer but I got this sponge filter to go on my whisper 40-60 gallon hang on the back filter which is very very good and does it keep the filters clean haven’t checked because it’s been a few weeks since I’ve cleaned the two large size filters that fit in there so on and I got these because to keep the hob sponge filter cleaner and also to help beneficial bacteria in the tank keeping the clear and guess what on writing this review when I checked the filters there white 95% white clean of course the extra 5% is probably dirty fish waste but that’s awesome!keeps my tank clean and it this does fit I repeat the second time it does fit just fits the whisper 40-60 gallon hob (hang on the back) just fits it and my old one was bigger and fitted better and after hunting on Amazon for a few hours and measuring the OLD sponge filter to slide on the filter to go on the hob intake tube I decided on this overall good quality overall compared to my old one it’s 4 stars but since it WORKS five stars highly recommend to people that need it for the whisper 40-60 gallon aquarium Godbless!

I've been using these as a prefilter on my Fluval C4 filters. They work very well. I clean them when I do a partial water change, about every 2 weeks. I've been using the ones I currently have on the Fluval filters for about 2 years. They don't restrict the water flow in a meaningful way for a couple of weeks in my tank, and do extend the life of the main filter pad by 2 or 3 times. They fit snugly over the end of the inflow tube and are small enough that they are not an eyesore (my judgement) in my 30 gal tank. My only complaint is that they can be torn if not careful while installing them over the intake tube. Do that slowly and carefully to avoid damaging the prefilter. (As a bonus, while cleaning them, squeeze some of the dirty water from the prefilter into your flower pots for free fertilizer.)

Been very happy with the product. Required a little stretching for initial fit, but then was correct snugness for removal and rinsing. Catches a lot of particulate.

Helps to keep fish tank clean. It’s also a great tool for keeping your fry from being pulled into the filter. Must wash it if full of dirt it can burn out your filter.

The filter is great but not the size listed on the website. The filter received is much smaller.

Works perfectly & is pretty universal in terms of fit. For reference i have a top fin filter for my aquarium & it was so easy to stretch a little for fit & does not slide off, It is a good medium thick & valuable since you get 4 of them.

Used to make an outflow baffle for the HOB filter on my betta tank. Works perfectly

Work really well. Pleased with purchase. Fit perfectly over my Fluval 217 intake.

Works great, I have mine stretched over the end of a fluval 405 intake filter, filter intake it about 1.5-2 inches wide

Perfect protection to stop my shrimplets from entering the intake of the HOB plus now gives more grazing area for the shrimp. Even my Corydoras like grazing on the surface.

Used as a replacement and very pleased