I am using my wifes 40 gallon semi reef jawfish tank to house it in. It has been set up for about 3 years with softies, candy cane, a ball of chaeto, algae, sponges. If for some reason he/she gets sick I can remove him and place in a 10 gallon with meds if I need to. Normally all my angelfish go into a 100 gallon rubbermaid tub, but I have what I am hoping is a female adult in there and did not want to combine the two. (I am hoping the short gil plate theory works?) I used the tub for my male(page 1) before I placed him in my 300. My other two Red Sea Regals came from one of my LFS. I am hoping in 6 months I will have my male, female and juvenile in my 300. Sorry about the crummy pictures.