Wow... sounds kinda hoaxy to me. Ive drip acclimated Black mollys, Green spot puffers, figure eight puffers, columbian sharks(black tip catfish) to saltwater with no prob. but ive never heard of a flowerhorn. Anythings possible though Ive seen a co-worker give CPR to a dead angelfish and it come back to life, so no telling. If its real it prob didnt live for long.