i have a 6og with 260wats of pc lighting.130 actinic 130 10k.i got a yellow fiji about week and half ago.sometimes the poylps come out, not all the way but to where you can see them and sometimes it just stays smooth and ruffled up.it is about 10 inches from the light in a gentle flow.now it did rip itself from the rock it was on when shipped.crazy.it is now suck in a shallow hole with no glue or anything.the polyps do react to the light at times.is it just stressed from the tear?is it to close,to far away?thanks for any advice .this is my first leather.thanks