shaneo Posted March 19, 2006 Report Share Posted March 19, 2006 Havn't really put any thought in to it since I set up my canister filter but what media would you recommend I use. It has two baskets and the area at the base of the filter where the bio balls sit. I have fish and coral but not a heavy load. Thanks Quote Link to comment Share on other sites More sharing options...
ghostface Posted March 19, 2006 Report Share Posted March 19, 2006 stay away from bio balls / filter wool etc. you will end up with nitrate probs with these. you could put some carbon in it Quote Link to comment Share on other sites More sharing options...
shaneo Posted March 19, 2006 Author Report Share Posted March 19, 2006 The filter wool went a while ago, still have bio balls, ceramic rings and nylon noodles. I put carbon in a small internal filter which helps water flow. Is there other things I can put in the canister? Quote Link to comment Share on other sites More sharing options...
jetskisteve Posted March 19, 2006 Report Share Posted March 19, 2006 coral rock??? Quote Link to comment Share on other sites More sharing options...
shaneo Posted March 19, 2006 Author Report Share Posted March 19, 2006 Instead of the bio balls? thats a good idea, is there much difference between rock and balls? Quote Link to comment Share on other sites More sharing options...
Feelers Posted March 19, 2006 Report Share Posted March 19, 2006 Well I think if you want it for denitrification you want an anerobic area inside the rock - meaning it has to be quite thick, and perhaps broken coral rubble wouldnt be good at this. Maybe someone else can answer this? Kind of like how a deep sand bed has to be 4 inches before it starts having denitrifing abilities. Quote Link to comment Share on other sites More sharing options...
suphew Posted March 20, 2006 Report Share Posted March 20, 2006 I run carbon and Zeolite in mine, have also run phosphate resin but have that in a fluidizer now. Dump the bioballs etc they aren't helping your setup at all. Quote Link to comment Share on other sites More sharing options...
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