I have a female stonii that's about 4.5in who has stopped eating. She's been in perfect health and has been a great eater until about 3 days ago. Her throat and bottom jaw area have gotten really dark about up to her pectoral fins and she has shown interest at feeding but will not eat. I put a feeder guppy in for her and she went for it, missed, and didn't go after it again. She still seems to be really healthy but she's just not eating. Is it possible she's wanting to mate? There are no male stonii's in the tank so unless she's mated with something else (doubtful) then I don't know. Any ideas?
--Jimmy
--Jimmy