My finacee and I are sort of sharing this account so any questions for her tank I will be posting. Anyway, I have an issue with my two male guppies, one of the guppies had a split tail right down the center and the other it was on the bottom of the tail. I'm really confused about this,it does not look like fin nipping. other than the two guppies there is 1 bamboo shrimp and 1 white cloud any ideas???