Ned help with hydra 52's coral keep dying.

[derrell]

I keep asking the same question with no real answer. I have a tank that is 60lx24dx30h with 3 hydra 52's 12" above the tank. I bought a par meter from seneye and did readings and and the bottom of the tank I'm reading 75-100 and 6" from the top I'm reading 550-650. I'm used to using t5's and halides so LEDs are new to me but I keep loosing sps and need help. Before the par meter I think the corals were dying due to not enough light so I adjusted the lights and for sps already in the tank they are improving but every time I put new sps in there they end up whiting out and dying within a week which makes me think too much light. This is what I have my lights at now. Can anyone help and tell me what I'm doing wrong and how to fix it. Thanks in advance!!

[cprice]

You have your lights on for 17 hours and full strength for 8 hours, that seams like way too much light.

I ramp up from 9am to 1pm then full from 1pm to 5:30pm and then ramp down from 5:30pm to 10pm. So mine are on for 13 hours but only full strength for 4.5 hours. I would try reducing your total light time to something more similar to that schedule first.

[Wazzel]

I also agree you are full power for to long. I run 14 hours total with 5 hour ramps and only 4 hours at full power.