I've got one in a heavily planted 29g, and the only thing i've noticed is the BN detaching the roots of one anubias as he was chewing on the driftwood it was attached to. He eventually detached enough of them that the anubias floated away.
Other than that, the BN has been great with the rest of the plants. I'd just recommend you have plenty of wood in there for them to chew on, and chill on.