Dmorty i agree strongly about fish not being disposable commodities but sadly some LFS here seem to think they (and corals) are....actually heard "oh you will get 12 mths out of it" recently. Some of my fish die because I make mistakes. I have been reading for the three years I have had a reef tank and realise I actually know next to nothing yet but now have a pretty stable mixed reef for the first time. My son has started up and tells me things his LFS have told him which I just know to be plain wrong..? ...oh well....I guess its classic human behaviour to repeat our mistakes. Sorry a bit off topic.