Hi, I was doing my tank maintenance, and was going to rinse out my filter pad, and I noticed that when pulling out the compartment, I noticed that there was an entirely empty piece?
What should I put in here? I already have some biofiltration. Also my tank has only been running for about two months with three fish, and no light.
What should I put in here? I already have some biofiltration. Also my tank has only been running for about two months with three fish, and no light.