eBetta.com

Here’s a trick to help wean your betta frys to dried food such as flake food. First, get a few baby guppies (these should be the same size as the frys or smaller than the frys) and place them in the tank containing the betta frys. Guppies feed on almost anything offered to them and so when the betta frys see the guppies eating the dried food offered, they’ll follow quickly.

I’ve also noted that betta fry seem to grow much faster with a few guppie fry in the tank. They must feel like they have to compete with the guppy fry.

Don’t worry about the baby guppies bothering your beta fry – they are way to small to do any damage.