Tropical Fish Forum

Tropical Fish Keeping Help and Advice => General Fishkeeping advice => Topic started by: jesnon on November 11, 2013, 11:00:52 AM

Title: Fish pecking order?
Post by: jesnon on November 11, 2013, 11:00:52 AM

So yesterday I added three new endlers to my five old ones. Since then there's been a bit of aggression flying around.  Not just amongst the new fish and the old but between some of my older fish.

I'm hoping this isn't anything to worry about and is just a case of the fish trying to establish dominance and a new pecking order... If such a thing exists!

my largest fish Kryten and the Three new fish seem to be the main trouble makers!

Title: Re: Fish pecking order?
Post by: Sue on November 11, 2013, 02:52:18 PM

I've always found my endlers to behave in an unusual way. First the whole lot of them will chase one fish. Then they'll change direction and start chasing another one. Then they'll change direction and chase yet another one. No one fish ever gets chased for more than a few seconds, and they never chase any other species - they seem unaware that there other fish in the tank with them. With other species, one fish seems to chase all the others rather than all of them chase one.

I have not witnessed quite the behaviour that you describe though. As you say it could just be the group adjusting to having new members.