I have a 29 gallon with 8 lemon tetras, 9 rummynose tetras, and 9 neons. On Sunday I added 5 panda cories. I noticed some aggression between the lemons before now but it seems to have gotten worse. There’s a chunk bitten out of one of the lemons. And now I just noticed one of the pandas tails is basically gone The pandas were really active the first day I got them and now they’re all just hiding in a corner. Every time one does swim out the lemons follow them. Any insight on why a “peaceful” fish would be acting this way or how to proceed? At this point, I’m thinking I have to bring them back to my LFS.