I have an AquaClear 20 filter in my 5 gal tank that is almost cycled. This is a 3 stage filter, and I've recently read a number of suggestions to replace the carbon element with something more helpful or beneficial. This tank will only be for one Betta, some plants, and maybe some shrimp if I get more daring.
Any advice on a substitute/replacement for a carbon element?
Thank you
Any advice on a substitute/replacement for a carbon element?
Thank you