My wifes lionhead has difficulty staying upright.. It sems the back half of his body is shorter than design would call for.. we bought him that way.. Wife says "Oh he is so cute" so well being the romantic I am.. I whipped out the 3 big ones for him.. The guy gave me a deal on him half off cause he seems to be a short termer.. Is there a fix for him?Or is he indeed just defective fish? Thanks folks