125g tank, 10g sump, 1 15k 175w MH and 1 10k 175w MH, 2 96w 03 Actinitc. Zoos, button polyps, shrooms, condy anemone, eel. Nothing spectacular. Have a wet/dry used for filtration, pre filters on the overflow. Didn't have any problems until I removed the old filter floss pads, just should...