yes, I did acclimate the shark and you've already told me about your job at the aquarium. So if I'm going to kill the shark and the anemone, thereby killing everything else in the tank, would the best option be to take it back to the aquarium, more than likely to be sold to another clueless aquarium owner like myself who probably doesn't have as much sense to seek experienced help, or keep it where its at and make damn sure that I keep the nitrites, nitrates, amonia, and pH levels perfect and advise my roommate to #1 not feed me crap and do research and #2 when he takes everything home make sure he provides a lot of room for each animal. I'm not trying to be a jerk, I just feel slightly attacked. I feel like the fact that I'm on here trying to get advice is being overlooked. I just want whats best for the shark, anemone, ray, and all the other fish in my aquarium and although my tank does seem small for what I have, there is always an option of getting another tank to house the shark or the ray so they can have the room they require, if this is an absolute immediate problem