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.
|