Aggressive Flame Tetra

[XeroTolerance]

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!

 

[crazyforcordoras]

Get more flame tetras. They are schooling fish.

 

[Staxx]

probs so aggressive due to being on its own.

 

[N0body Of The Goat]

I would rehome the Flame Tetra, you do not have room for two schooling groups in a 10g, especially if that is 10 US gallons.

In small numbers, schooling social fish can become little monsters, being rather aggressive and territorial.

 

[XeroTolerance]

I don't know how to get rid of it though. I bought it from petsmart and they said I couldn't return it. There are no LFS within a 50mi radius from me that are willing to take it! There are just Petsmarts were I live. I also asked around and nobody I know has a fish tank. Their friends don't have fish tanks. I find it hard to believe that it would be this hard to just get rid of one fish...