Jump to content

My Neon Tetras are Jerks - Aggressive and Fighting?


B1gJ4k3
 Share

Recommended Posts

I have 7 neon tetras (well 8 actually, but one is currently being treated for god knows what) They seem to be constantly fighting and chasing each other around. It doesn't really seem like it's one particular one either. They all seem to end up chasing each other around across the tank or chasing each other/fighting in a tight circle. I was hoping that moving them from a 10 gallon to a 20 would make things better. They were initially more chill as they acclimated, but are now back to the same behavior.

I wasn't able to catch them circling, but you can kind see what I mean here:

Anybody ever seen this before?

Edited by B1gJ4k3
Link to comment
Share on other sites

Not just neons, but a lot of schooling fish try to establish a pecking order as well. The most dominant neons comes out on top in regards to food, territory, first pick at mating etc... this behavior is most common when they create a new school, as in your case getting fish not from the same school. They are establishing a new pecking order. It will subside overtime with a few flare ups from time to time if one decides to challenge another to be on top. The flare up you are observing is usually quite rare in an established school of fish because they begin this dominance / submissive ordering system as juveniles, with only the occasional time to time challengers. It should subside overtime once they have sorta figured each other out. 

Link to comment
Share on other sites

Other things that may help deter this behavior is by having a larger fish in the aquarium or additional flow.  In my own personal experience, a larger fish that is unable to eat them but shares the same section of the water column (if only partially) often, but not always, helps to have them group up.  Also the various groups I have kept over the years also tend to do similar behavior if there is an easy directional flow in the tank that they are able to swim against.  It may be a stupid idea, but I kind of always thought by having a bit of flow in the tank it helps to tire them out as they have exercised their energy. Now I don't keep the flow on all the time but put it on a timer.

  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...