On Sunday I purchased two blackmoors for my new 120L tank, they’re the first fish in there and I wanted them to be able to grow and have lots of room. Now as the shop didn’t have too much size variety, I ended up with one larger and one smaller. Theyre still quite young so I can only tell the gender of the larger one and not the smaller. This morning when I went to feed them (I make sure to watch them finish eating so I know it’s the right amount and no odd behaviour occurs) I noticed that the larger one was pushing into the side of the smaller one while he was eating. When they aren’t eating usually they leave each other alone, but I’m worried that this behaviour will cause the younger one to starve or get sick. Any advice?