Hey... too much current. I had them in a 100 gallon reef and they stop pulsing, they dispursed and regrew in other area of the tank. They all eventually died off except one area.... hmmm I wondered. I looked at the loacation and down sized my power heads from 4x #3's to 2 x #1's and boom xenia every where......
They do not like current. Maybe just a tiny bit. They will grow out of control once they are happy. I give my extras away for free after a while.
Corey
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