. I need some help on what to do with my filtration. This is my first saltwater tank and unfortunately, I didnt know NOT to get CC substrate when the "expert" at the LFS
reccomended it, so I have about 3" of CC substrate. I am working towards making my tank into a reef but now I am having a problem with Nitrates. They never seem to fall below 40 even after water changes (RO
water always). I have bioballs in my filter along with filter media. There is also one of those sponge blocks that sits below the bioballs, and a prefilter in the overflow, So basically my tank is a mean, nitrate producing machine! What do I need to change? I have about 70 LBS of LR
, CC substrate as stated before, no skimmer yet......75 gal
, 2 damsels, 2 clowns, crabs, snails...........
It seems to me that all the sponges and filter media are the culprit.
Oh yeah, I would like some advice other than changing the substrate to live sand, although I plan to do it eventually, I cant immediately.