Hello, today I purchased 5 neon tetras in my 10 gallon tank. when I was acclimating them using the bag method I realized something was wrong when the flame tetra was attacking the bag. When I added the neons the flame tetra then continued to chase/attack them. I am leaving them in the dark to get the fish relaxed. It seems to be working a little because the aggression seems to be lowering after about 4 hours. Could the Flame tetra just be established who is boss (pecking order)? The tank is a 10 gallon tank with: 1 Flame Tetra 5 Neon Tetra Any help would be appreciated!