I recently lost all the montis from my display tank due to a recurring plague of nudibranchs. I luckily had frags of several montis in my frag tank but didn't manage to save either of my green montis. I'd be happy to grow up some larger monti chunks for fragging and to put back in my display tank once the nudibranchs have starved (I'm waiting until the end of May to be extra sure).