I have one of those HOB filters with the replacement cartridges containing activated carbon. I recently took out the cartridge and replaced it with a big piece of filter foam instead because I read that activated carbon removes ferts from the water column.
Ever since then my tank has become somewhat cloudy and it looks like a bacterial bloom.
Is my tank going through a mini-cycle? I've never replaced the cartridges before and I'm not sure if thats the issue or something I haven't accounted for.
It's a 20 gal long with high light and injected co2.
Ever since then my tank has become somewhat cloudy and it looks like a bacterial bloom.
Is my tank going through a mini-cycle? I've never replaced the cartridges before and I'm not sure if thats the issue or something I haven't accounted for.
It's a 20 gal long with high light and injected co2.