I've used this filter for a few projects but I think this one is the most substantial. I prevented small shrimp and fish from going overboard into my overflow box.

I cut three pieces off the large pad and lined them up against the guards and pushed the teeth of the guards through. This filter has tons of huge pores that are the perfect size as a barrier for fish while being large enough not to clog.

This project took 10 minutes, a pair of scissors and some super glue. I recommend this setup with this pad because of the size of the pores. I haven't seen other filter pads with the same size and amount of pores.

This filter is going to be huge for the hobby as people figure out what it can be used for.

Learned about this product on YouTube! Love it.

Very convenient, I cut to size to replace cartridges in hob filters. Combined with some media works great!

From the YT Marineland Portrait 5 gallon video, I thought "Oh that looks like nice sponge, indeed." Wisely I purchased it for my various bumblings and it is indeed a thick, versatile product. Can be adapted for many tank/sump applications, appears to have a longer lifespan that most of my shrimpen cultures.

Works great for hot roding hob filters

Is thin enough to fit in the back of any of the different sized filters all of which I have are small medium and large. One chunk will work in multiple filters when cut into pieces, even if it looks too thick for the small filter, I just took out the cartridge and used its solid structure to shove it all in neatly. So it'll still squeeze in with the cartridge even in a small aqueon filter for example. It's very porous.

cheap. The best stuff. Cut to fit what u want. Great company fabulous product wonderful shipping honestly no cons why are u still reading this place your oder for it lol 😆

Great deal and fast shipping! We use these in all of our filtration

This pre-filter sponge is very helpful with my HOB Aquaclear. Easily washes clean and reusable for a long time!

I was so tired of spending money on replacement cartridges for my filter and when I saw this I was so happy. This has helped me a bunch I’m not just saving money but better care for my tank and fish. Thank you so much for helping me be a better fish keeper. I used this on both of my HOB filters for my ten gallon tank and my 55 gallon tank. Awesome product and highly recommend. Super easy to use as well. Just cut it to the size you need. I do recommend getting two or more for bigger filters if you have more than one large tank.