Welcome to FishLore! I'm interested to find out an answer to this question as well. I looked at a couple of sites... the first being aquadvisor, and it listed no compatibility issues (actually recommended keeping at least two lawnmowers together.) However, when I read the profile of the lawnmower on LiveAquaria, it said it was peaceful towards other fish unless they were the same shape or coloration. Obviously the bicolor and lawnmower have different colors, but they do have similar shapes?