Thoughts on SPS polyp extension..

[Aquattro]

Originally Posted by lastlight

Maybe the substrate in your water column is sand-blasting them =)

Ya, that's my original thought, irritation from the turbidity. I swear I'm losing 30% of my light to the dust cloud!

Darren, pretty sure it's not fish, I have mostly large tangs and a couple of large wrasses, 4 clowns. No known coral nippers.