So I did the reef flux after doing a 30% water change yesterday as I was instructed by LFS and I came home today to my snails being closed up my pin cushion sea urchin scrunched up not happy, my six line wrasse was swimming like a zombie walks idk how else to explain it and my huge cleaner shrimp in laying down on the rocks like it’s about to die. I called my LFS and was like what should I do. The said put the flow coming up from the sump as close to the top of the water as I can and then either get a power head close to the top so it bubbles up the tank. It is stripping the oxygen out of the water and they need oxygen. So I said is this how it is going to kill the gha and bubble algae? He said no but the chemical is use strips the oxygen in the process. The fish are swimming fine now but the shrimp and snails still not. But thought this might be a good bit of info for anyone who is interested in using it. I wish they would have warned me of this before hand.

