If you could swing it, I would get a 40 breeder. I believe that Petco is still having their $1 per gallon sale. I would get a divider to keep the dottyback separate from the other fish. This will help to eliminate the aggression from the dottyback. Are you a member of NJ Reefer's? You may want to post a thread on there and maybe someone local has a tank you could borrow to get you through this.
I don't know if I have room for a 40g .. But the DB never bothered anyone else..I probably don't have time to place an try to get a used tank so Im going to just run out now in fact..I hope a 20 or a 25 will do it.. Well thanks for the advice and wish me luck.