• Polish sponges

  • Chad231

Good afternoon. Can you tell me if it is possible to use regular Polish sponges with heads in a marine aquarium as is done in freshwater? They worked great for biological filtration in my freshwater tank. And the second question. Can regular construction river sand be used as substrate in a marine aquarium? Thank you.

Gene1948

As far as I know, there should be no nitrates in a marine aquarium. And a sponge does not provide that.

Wendy2244

As far as I know, the infamous wet drive filter is also effective only against nitrates.

Yolanda

Nitrates like nitrogen need anaerobic bacteria, that is, bacteria that do not require oxygen. They are the ones that decompose nitrates.

Susan

Sure, why not.

Corey3201

The same principles apply in a marine aquarium as in a freshwater one, but the approaches are different. I do not recommend using silicate construction sand, although it is possible. There will be an increased silicate content in the water, which will lead to a rapid growth of diatoms.

Robert800

Sponges can only be used if you wash them every day. When organizing filtration in a marine aquarium, you can do without any sponges, synthetic fibers, etc.