So I currently have in my 55g 9 Amanos, 4 Black Neon Tetras and 2 Giant Danios. The Giant Danios are REALLY active. They're about 3 months old and always are flying around the tank. They don't have any unusual behavior, they're just energetic. However, when I added them back into my 55g they seem to stress out the other fish. One of my Black Tetras was stuck to the filter the next morning (bringing the total to 4). In addition tot his, the tetras will only eat if the Danios aren't near them. If they're swimming around, they grab the food and spit it out. Is it best to get rid of the Danios and perhaps find a new home for them? Should I stick with more mellow fish?