[TheCheeseWizz]

Why have my Neon tetras started fighting and chasing each other. I have 9 in my ten gallon tank. I had 6 up until about a week ago then I got more.

 

[beaslbob]

you upset their "gang" by adding the three. Now they got to figure out this who new gang thing all over again.

 

[TheCheeseWizz]

Why would it take a week for them to start fighting?

 

[MediaHound]

Rearrange the decorations and see if that helps.

 

[TheCheeseWizz]

Its all real plants, so I can rearrange them. They seem to have calmed down, for the moment at least.

 

[adzample]

sometimes they will do this to give each other the who's boss initiation. It should be alright if they have stopped