hi, i was thinking the other day about cheap substitutes for lava rock that you could use in your canister filter. i dont like any of the "rock" type bio-media not b/c it isnt good, but b/c i hate the fact that little chunks weather and break off.
anyone use bio-balls in their canisters? maybe legos? hair curlers?
M
anyone use bio-balls in their canisters? maybe legos? hair curlers?
M