I doubt they would eat it. I've had a least a few wilds for over 10 years, growing out most of them. I know others may do it differently, but about the only plant matter mine have ever gotten was ingredients contained in prepared foods, like Hikari Discus Bio Gold. I've heard some people use squashed peas. Honestly, I tend to feed them mostly live foods. Perhaps live foods may kill the sterile, neon colored, man made "bubble fish", but live food seems totally natural to wilds, and they thrive on it. If you use a clean source, and keep their immune system up with clean water, there's nothing to fear.