You must be annoyed at me by now Jewels (especially juveniles) can be fast when they want, I've fed mine guppies, and they caught them with no prob. They might not catch the danios immediately, but they'll be picked off. I'll try to think of some fish to put with a breeding pairwrs said:what about a school of danios? They're really fast, and i don't think the jewels would be able to get them.