Hello everyone. I bought 6 diamond tetras a few weeks ago to put in my 55 gallon tank with cories, rummy nose, and a honey Gourami. They are very aggressive with food, to the point where they steal all of my cories wafers when lights are off. And when the cories are on them, they butt them out of the way to snatch them up. I don’t like fish messing with my cories at all. I have a 20 gallon with 5 zebra Danios and 8 neons, would this be a better set up? I kinda feel bad moving them to a smaller tank, but they do not leave any food for my other fish, and are aggressive to my cories. What do you think I should do?