So I've had my tank running for about 6 months and have had no major problems until recently. A lot of my corals have been sucked in and not coming out. Hardly eat and the over all color is just poor. I've check water quality and all seem to be fine. My acans and Zoas are the ones mostly sucked in but everything else seems fine with new growth. Today I also found my emerald crab dead and also not sure why. I've had him since the start and he hasn't really grown over 1". Any suggestions on what I should do or look for? Parameters: dkh-8.7, calcium-430, magnesium-1360, ph-8.1, ammonia-0ppm, nitrite-0ppm, nitrate-5.0ppm, salinity- 1.025.
