So, I've been dosing H2O2 at 1ml/10g once a week for I think two weeks now? Had a little pesky GHA that was growing on a few zoa frags on the rack. That is now gone, and I don't want to speak too soon, but I believe the ulva is starting to very slowly die off. There was some on the gyre, and being that is where I dose the H2O2, it is now completely gone from that area and the stuff on the snails is seemingly less dense. I did spot Ahi finally eating ulva from a snail. I've been withholding his double nori clips he's been used to. With the new scape, he's found a hiding spot back on the right side of the tank, away from the clowns, so they haven't been fighting like before.