Why the hell do my sps keep dying

[dabandit]

Well it would seem my ka wasnt testing out properlly,the whole time i'd been running around 5ish. I jacked up alk in one day to 8...result my remaining 2 corals have healed over the skellies, and my latest test batch is holding strong,wish me luck lol. I dont run the zeo system by the way,I started dosing coral snow and sponge power in a previous attempt and was very pleased with it,but thats all I use. Mine is an algae driven system,along with my overcapacity skimmer and dual phosbans it seems to keep the nasties around zero. You can check out the survivors and my latest test batch in my album on here if you like.