I picked up 2 red teaxs from petsmart knowing they were fh's they are growing fine .My issue is as of 2 days ago the male at 2 " has a hump showing but he has what seems to have stopped eating .I have tried beef heart ,bloodworms,brine shrimp ,and mysid shrimp.Ihave also been using nls ,and hikari . he was eating fine and one day I dropped a square of hikari bloodworms and his belly filled way up. since that day he will take food in for a second looks like he is nibbling then spits it out.. Is this the sign he is going to die ? he is very aggressive and active and attacks the food i put in ,but like i said he spits it out.. any help would be awesome 
