Hammer Coral not happy with LEDs

[Gripenfelter]

4 lights over a 7 ft tank.



2 sideways and 2 lengthwise.

I guess I could try moving the coral to a lower depth. Currently 12" below the waterline.

Above pic is an old pic. Tank doesn't look like that anymore except for the lighting.

[Twinn]

I also have the these lights and believe you have too much light. The E-shine fixture does have an issue with spot lighting corals sometimes. Might just have to move the light or the coral over a bit.

[sphelps]

It's probably too much light, creating something called light shock. LEDs are misleading they are bright but you can't run them that bright, especially with optics. Your tank should appear dimmer with LEDs as appose to MHs, most people adjust the light intensity based on visual appearance but this doesn't work. I did the same thing with my LED fixture, ran it too strong and many LPS did poorly and I toasted a few SPS. I now run it at a fraction of what I use to and things are much better.

Dim down the unit, run your blues closer to about 50-60% and your whites even lower at about 30-40% and see how things do. It will take a few weeks for things to actually improve.

[reefwars]

how long has the hammer been in the new tank??? probably still getting use to it or still ****ed about handling

[Gripenfelter]

Thanks guys. I'll turn down the lights.

[reefme]

Same thing with my birdnest. Too bad I can not dim my light down.