HYDRO-SPONGE FILTER V HS950 (125GAL)

Great product!!!

wow - within less than 48 hrs of setting up water started to be noticeably clearer - polished even. I would highly recommend this product.

Product was as advertised. It had arrived a few days earlier than expected. Very happy with the quality.

This 125g sponge works great in my 55g tank. Overfiltering is the best way to go! For reference, this sponge is about the size of a large roll of toilet paper. It takes a day or 2 to stay sunk to bottom of tank, after squeezing water into it & keeping a brick on it overnight. It works great to get sand particles out of the water from filling the tank. I have since switched to gravel, but it helped me tremendously with settling the sand & using as a buffer when adding water to the tank during fill-ups. The sponge tends to lose shape after a few squeezes in used tank water during deeper cleaning. I do this about once a month when it gets too dirty. It does retain most of its shape. Add an airstone within the sponge core, to cut down on the big/loud bubbles. So far I am happy with it! I have bought different sizes from the same company & all work well. I had used internal filters previously & kept getting detritus worms.. 🤢 None of that with this sponge! So glad I made the switch! Bonus = it makes an extra place for small fish to hide under. Plecos & snails love to nosh on it, too! 😋

This is the old version of the Hydro-Sponge filter, not the PRO version, which comes with a vastly superior reticulated foam filter. Look elsewhere.