I am thinking of getting a moray eel I found at a local restaurant but would like to have some advice/comments from experience hobbyists before buying it. I intend to house in my current 6x3x3 tank, with an option to upgrade to 8x4 in the near future. Tank mates include 2x 20" panther, 8" tiger grouper and 2 big angels and some big banners. Will the last 2 fish be safe? I hv the option of letting my friend adopt them if its risky... thanks