M marinerfr Guest Mar 2, 2007 #1 is it a good idea to put my bio balls in a 20 gallon filter :thinking:
jacksonpt Active Member Mar 2, 2007 #3 I think bioballs are good in new tanks as they cycle and then get established with livestock. However, in the long run they can cause nitrate problems and should be removed, or even better, replaced with LR rubble.
I think bioballs are good in new tanks as they cycle and then get established with livestock. However, in the long run they can cause nitrate problems and should be removed, or even better, replaced with LR rubble.
