I think my live rock and live sand displaces about 15 gallons. I do have a skimmer that is running. It has a lot of sludge that builds up in it each week. My nitrates are most likely high because of my high tank population. I'm considering removing six of my ornamental fish, five chromis and a devil damsel.

My corals do grow rather quickly. My mushrooms go on division binges at least once a month. My frogspawn has quadrupled in mass in the past year (I need to frag it). The star polyps that I have grow rather quickly and the zoanthids that I added seem to be doing well. My bubble tip anemone doesn't get too bubbly and generally looks like a long tentacle anemone. My long tentacle anemone has actually improved since I purchased it. It was almost bleached when I bought it and quickly browned.

I use RO to top off my tank. I put a reef buffer in it. I buy my salt water from the LFS. I never put tap water in my tank. Occasionally, if I'm out of RO I run to the convenient store to get distilled water (not copper filtered).