I was checking an online shop and beyond the "bioballs" and carbon and noodles, they sell zeolite and other local costs filter material. They also have some not so cheap ones from seachem and others.
so what low-cost/not to expensive "special" material have you used in your canister? which one would you recommend?
thank you
so what low-cost/not to expensive "special" material have you used in your canister? which one would you recommend?
thank you