My Angelicus do punch holes in my amazon swords if I don't feed them enough cucumber. My CL's do it too, so my guess is you should expect it with most botiine loaches. Just keep feeding them veggies & they won't eat your plants. Their digging has always been my issue, though. They love to dig around in my sand, which occasionally uproots a plant or two. They are always hungry, so the best method for me is just to throw a slice of cucumber in every morning & leave it all day. They love to punch holes in it with their little nozzle-mouth until all thats left is the skin. Their social & feeding behavior is much different than the CL's, so let me know if you need more info before purchasing them (at 12 or 13 bux apiece!)