SEE thats what i thought too.. but his colors are now sorta faded blue again.. i dunno if he's sick.. for a while he was.. had white poop and dark color.. he's been cured.. but still very picky on food...
your lucky then mine had white /clear poop and dropped dead the next day was so angry lol
i think he had callimanus but yer had to clean everything and yer
the bigger they are the less risk of them dropping off as quick around 4" mark there safe i guess they don't get sick as the little ones do there more prone to it is what i have red and been told ...