I have a 30g tank. In there i got toadstool (way on the bottom of the tank), couple of zoas on the bottom and a favia on the bottom. Way up top i had my Acro(recently bleached all the way) Monti/mili. For some reason my sps is dieing. The Acro was 1st to go. It got slight brownish lookin algae on the tips and then bleached after the algae and it receded down the frag. Similar thing happened to my Mili but its still alive but has bleached tips... and monti just started bleaching today 
Parameters:
DKH- 9
Calc-580 (i know its high im trying to reduce it)
Nitrates- 0
phosphates- 0
Mag-1350
Temp-77-78 all the time
Lighting- 4bulb t5 over a 30g (18 inch deep)
Sg-1.025
(ATP test kit for calc/alk/phos/nitrate) (Elos for mag)
I dont know what to do... my alk has been stable but my sps are bleaching
I do have slight algae on the rocks, but nothing major (you have to look very closely to actually notice the algae)
My flow is the only thing that isnt that great right now, I have 2 Koralia 1s but im upgrading to Mp10.
Any 1 have any suggestions on what i should do to keep sps healthy???
Parameters:
DKH- 9
Calc-580 (i know its high im trying to reduce it)
Nitrates- 0
phosphates- 0
Mag-1350
Temp-77-78 all the time
Lighting- 4bulb t5 over a 30g (18 inch deep)
Sg-1.025
(ATP test kit for calc/alk/phos/nitrate) (Elos for mag)
I dont know what to do... my alk has been stable but my sps are bleaching
I do have slight algae on the rocks, but nothing major (you have to look very closely to actually notice the algae)
My flow is the only thing that isnt that great right now, I have 2 Koralia 1s but im upgrading to Mp10.
Any 1 have any suggestions on what i should do to keep sps healthy???