[Charlie97L]

that's good... if it can't stand powerheads, just keep your sump return going for oxygenation, and leave the powerheads off... you don't have anything that needs flow, particularly, right now, so yuo can afford to have them off for a while.

that's good that it took the food. you're going to have to put in a lot of time, but it's probably salvagable.

how old is your tank? generally, it's not recommended to keep an anemone until your tank has been up for a year with stable parameters. that might be a problem too. anemones are VERY sensitive creatures.

edit: i see you've had your tank up since may... that's definitely on the short side, as far as stability goes, and generally (and i'm not criticizing, this is just my experience, in all forms of aquaria) it's a good idea to work your way up the difficulty ladder. you've got hardy fish, and hardy coral, and you jumped a few rungs to an anemone, which is one of the harder creatures to keep.

also... how did you acclimate it to your tank? for anemones/inverts, a drip acclimation over several hours is recommended.