ok mama want the reef tank moved to a different wall so here's my ordeal..i have a 15 gal tank to hold my couple of fish i have and my corals until the reef tank cycles again once its in its new place. The problem is this tank has had meth blue used in it. It was a couple of years ago and i have been using it as a sump for about 6 months.. It says on the bottle that its safe for fish but not inverts..Im just worried about my corals. So here's what im going to do. im going to get a couple of blue legs and throw them in there and watch them closely for awhile and see how they do. I am running carbon on this tank also. Im not sure if meth blue is absorbant or not. i know copper will absorb into the glass but not sure about meth blue.

Anyone have any experience with this stuff..it was put in there to treat seahorses.

Thanks

Rick