Three of my four male Cherry Barbs are not eating.I think the cause is that they have been bullied out of eating by my 9 zebra danios. The one that is eating actually eats very little. The only solution I can think of is to trick the barbs to moving their territory by adding more plants to a certain area the Danios won't go to for some reason. Do you think this will work? One final question: Can you tie a Java fern to a plastic decoration, and they will still thrive?