I'm having 2 issues with my tank that are driving me crazy. First my paramaters: temp 79-80; salinity 1.023, ph 8.4, trites & amm 0ppm, trates 10 - 20ppm, calcium 390, phosphate 0. Tank is about 7 months old. I have T5 lighting (nova extreme fixture...actinics on 9 - 9...daylights from 10 -...