older biocube 29 to become a planted tank
are bioballs good or bad for planted tank? i was thinking of removing them and putting in sponges. (any ideas on best sponges?)
also, is there a sponge that "polishes" water? there is some cloudiness to the water, my old canister filter (years ago) had a polishing filter.
thanks
are bioballs good or bad for planted tank? i was thinking of removing them and putting in sponges. (any ideas on best sponges?)
also, is there a sponge that "polishes" water? there is some cloudiness to the water, my old canister filter (years ago) had a polishing filter.
thanks