There are two more fish I want to get for my tank which will be the last additions. I would like a powder brown tang and a flame angle. I have a 75 gallon mixed reef tank. Here is my current stock list ( 3 wrasses, pajama cardinal, black and white clown, purple fire fish, green mandarin gobi, lawnmower blenny). I would like these last two fish to seal the deal. All of my current fish get along great. I just had to get rid of an ornery arrow crab and now all is well. Would it be ok to add these last two fish?