So I got a frag about 2 weeks ago.when I put it in the take about a hr later it was slightly open.I gave it a few days and it still never fully opened.I looked one night after the lights where off and all 5 heads where fully open so I figured my lights were to bright.I moved them lower and of to the side and they r still doing the same thing and I can't really give them less light.I have the aI prime hd and the duncan is off the the side in my 20 gallon long. Thanks everyone