I have a 3-4 month old 40 gallon breeder FW
tank set up. I have a community tank, NO PLANTS, with about 8 fish In it, 2 mollies, 2 dwarf gourami , and 4 red tetras
My Filtration is. Fuval 406 with sponges as the first media,Fluval Biomax Bio Rings in the 2nd basket, activated carbon, then zeolite carbon, and a polishing pad at the top.
It flows bottom to top. They have a course sponge on the sides, then I have a finer sponge at the first bottom basket
I also have a algae media in on the brackets towards the top to help with algae build up.
I'm reading to use activated carbon but then I read don't use it. Same with the zeolite carbon
Thanks for your help