its an asian crossback gold that was my guess (no gold color up to fourth level, blue-based with really thick scale frame and the fins arent that of red-tail). are you sure? i think its stunted. too small tank i guess and seldom water changes as evident on wrinkled gill plate. guys, this aro would have been magnificent if had been taken cared of properly, it has a really high back and thick body frame. thats if its normal. if what youre saying is accurate, then this guy is really a very unique specimen