Why are my hard corals dieing and leaving the skelaton? Parameters seem to be good but not educated on additives? Help if ya can! 
Hard coral survival
- Thread starter Reefer Ron
- Start date
What species? A lot of the more delicate species bleach and die when stressed. Temperature can be a serious problem.
Temp is at a constant 78-79. Lighting 2-250w MH on 9 hours 1 250 MH on 11 hours and 2 VHO 96w Actinic 11 hours and 2-96w VHO actinic on for 12 hours and blue rope lighting on all through the night. Just started adding reef essentials. Alk 3. all other parameters ok!
Need to know 2 other ctitical parameters - PH and Calcium levels (either of these two being out of kilter will lead to dying hard corals).
What I would say is your alkilinity at 3 is pretty low, as its linked to Calcium then I suspect you may have problems in this area.
Please post the two levels ASAP to get a response
What I would say is your alkilinity at 3 is pretty low, as its linked to Calcium then I suspect you may have problems in this area.
Please post the two levels ASAP to get a response