from what i read from other peoples experience. if they are not well fed they may sometimes nip on small plantlets. but mine never bother my plants when i had them.
Ok good to know. I have been getting mixed reviews online. some people are saying dont what ever you do put them with plants. Others are recommending it. Its all contradictory information.
I have a school of 6 and haven't had any trouble with them taking out my plants. They may nip occasionally...but I've not seen them doing it or seen damage to my plants to make me think they're chowing on them.