Hi, We have three panda cory's two are together all the time and the third is usually on his own. he doesn't have the black on his tail like the other two and has little spots down his back - is it possible that he could be some sort of cross, or is he not a panda, or is he just a panda that looks different to the others? Have tried to attach photo so hopefully it works. The two at the front are different to the one at the back, any help gratefully accepted.

