hi i recently bought my tank and it came with a canister filter. i no NOTHING about it. i went to the lfs and bought the media needed, i bought those ceramic rings and carbon. the model of is a rena filstar xp3. is this a good filter for a 65 gallon with big cichlids, and why is there a valve that makes it go stronger? should it be kept on the max or the min?
thanks guys
thanks guys