Hi! I'm new to this site. I found it while googling for info on my new tank and fishes. Just a little background on my tank: It's only been set up for about a week and half now. It's a 10 gallon though I plan to eventually go larger if I have "fish luck." I started off with 3 male guppies, 3 neons, and 4 ghost shrimp. I didn't know about testing water for ammonia, nitrites and all that other stuff. I lost a guppy and all my shrimp. Yesterday I bought 2 more neons and 4 more shrimp. (Shrimp are already dead and I don't know why. Guess I have no luck with them.) Here goes my question....Are neons territorial? Before I added the 2 new neons everyone got along great. Today I noticed the bigger neons are picking on the smaller. Chasing and nipping. (They don't mess with the guppies). One of the neons even hangs out by himself under a rock. Is he being bullied? I don't want him to die cuz he's all alone. anyone ever had neons that are seemingly aggressive to their own kind?