[FONT="]hello all: 75 gal fowlr tank s.22 .23 nitrite 0 ammonia 0 ph8.2 mag 1400 cal360 phos 0 kh 10 two clowns two 6 lines one algea blenny several hermits and a variety of snails some halmedia on some live rock and a muscle ,20 gal sump 20lbs live sand cheato and 10lbs live rock in there (protein skimmer aqua 125) 35lbs live rock 50lbs base rock R/O D/I water some candy can coral and a couple of polyps having an issue with keeping calcium up any suggestions would be appreciated, tanks been set up just over two months, think I put everything let me know if I missed some needed info thanks.[/FONT]