I noticed the other week that a couple of my Neon Tetras had nipped tail fins, a couple days ago I noticed all but one Neon have nipped fins. I think I've nailed down the offender, the male Leopard Danio! I reckon after moving the territorial Chinese Loach out to a friends pond, this little Leopard has taken over the role of bully, he seems to have claimed the piece of driftwood as his own and will chase of anyone who approaches. What are my options here? This is a 100L(29g) tank, currently home to 8xNeons, 6xDanios (4 zebra and 2 leopard), 5xWhite Clouds and 2xGoldfish. All going well, the Goldfish would be out into their own tank tomorrow or the next day (yes, I've got some time off of work so I can finally that other tank setup!). ...will I need to decide to keep one species or the other? Or just send the bully off to etiquette school?