Sorry to hear about your crash......I had to deal with HA once...OMG It was awful.....Took a long time of daily picking and extra tank maintenance to be free of it
Do you have any emerald crabs? or turbo snails? They helped me a lot
OH As did a seahare....GREAT for eating it, but after it is gone they will starve....so it might be nicer if you have a lfs or a reefclub to trade it with later