I have been in love with those black stingrays with the white polkadots. Having said that can you please tell me if it would be possible to keep one in a 130 gal tank? Are they called motoros? I cant remember thier name thismorning cause I havn't had my coffee yey! LOL Thanks for any advice. I believe the tank is 18" wide. I'm thinking that it might be a bit small but if it is too small for that kind is there any that I could keep?