superemone;4918390; said:Definitely not hybrids. They come from reputable sellers. They're still young. I got them less than a year ago when they were just starting to color up.
I feed my fish twice daily and do ~65% water change every 4-5 days.
If they are that young, you may be overfeeding them, causing fatty deposits on their head. I would cut back to once a day.