So after years in the hobby I finally got an Angelfish and...I really really like it. He (?) is a marble and was tiny when I got him (dime size). Now he is the size of a quarter and growing fast. He is in a fully planted 29 gal with some black neons and diamond tetras. The black neons are old so I don't think they'll last much longer. Should I get him a buddy? My concern is fighting/fin nipping. He has perfect fins.