On Sun, 16 Apr 2006 01:33:59 -0700, lurker lurker@ wrote:

ive had 12 bioballs in my canister for months now and they seem to be
pointless. can anyone recomend something they may work better. the
canister uses a sponge and theres plenty of free space.

thanks for any tips

You could get some of those ceramic pieces for Fluval filters at the pet
store. ~ jan

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(Do you know where your water quality is?)