Yes, I have BBG's with my ten inch long violet goby. I bought five of them, and I still have all five, plus the 20 or so that I am raising after they spawned (I've posted a thread about that in case you want to know more). The violet goby has never shown any aggression towards the bumblebees. While he was resting one time I even saw one sitting on him. He didn't eat their eggs, nor did he attack the male who was so loyally protecting them. Even though he's aggressive towards me, the five bumblebees and the many guppies (including fry) are unharmed.