Corals Dying - Calcium

[Reef Pilot]

I run bio pellets, and they have done wonders for my tank (used to be very high nitrates and phosphates), keeping my nitrates at zero, and phosphates near zero (also run GFO). Where people get into trouble with bio pellets is not dosing enough bacteria supplement. I use MB7, and keeps my tank very clean and free of cyano, and other algae. Also, you need the right reactor, so the pellets tumble properly, and the output has to go to your skimmer.

I just started SPS less than 6 months ago, and they are growing very nicely, with very good colour. Some have a couple inches growth already. LPS (which I had before) is OK, but growth seems to have slowed.

I don't feed any of my corals, other than my dendros and sun corals (directly with mysis).