Wild or tank raised

[neon]

Which is more aggressive wild caught or tank raised? What are some others take on this.

[William Palumbo]

I've had both types being aggressive. IME wilds, once settled in are a bit more agressive and out-going...Bill

[Eddie]

Its not something you can categorize, each individual fish has a specific temperament. My domestics literally fight to the death, not kidding.

[NanDiscus]

Agressivity and the amount of space available go hand in hand. My wild Xingús would have killed each other in the 75g tank, they get along absolutely perfectly in the 270g...

Nandi

[Jhhnn]

I've never kept wilds, so I can't comment on that except to say that wilds don't get to grow up by being wimps. Issues of dominance and aggression are part of the reasons I've kept groups of domestic siblings from a single clutch. They've spent their lives together, if in a bigger school, and have been sorting it out from the time they were only wrigglers. They seem to be able to recognize each other and their relative rank. When I removed a single fish for treatment, for example, that fish went right back to their place in the scheme of things when returned to the group, even a week later. Of the 3 groups I've had, none have ever damaged each other significantly. Their aggression is mostly stylized- posing, posturing, pecking and chasing to maintain their place in the hierarchy of the school.

I suspect that disparate groups thrown together by hobbyists wouldn't be nearly so harmonious, particularly if adding sexually mature adults to an existing group. Whatever balance they've achieved would no longer exist, and the only way they have to re-establish it would be through a round-robin of aggression... which might be extreme, as Eddie offers.

[roundfishross]

I have a female pigeon that will attack my hand every time I feed or do water changes. tha damn fish is just out rite mean!!! literally jump out of the tank a good four inches to try and attack my hand!! the most agressive discus I have ever encountered.

[Jhhnn]

I have a female pigeon that will attack my hand every time I feed or do water changes. tha damn fish is just out rite mean!!! literally jump out of the tank a good four inches to try and attack my hand!! the most agressive discus I have ever encountered.

At least she doesn't have teeth, or the bite force of an oscar...

[vera]

I have a female pigeon that will attack my hand every time I feed or do water changes. tha damn fish is just out rite mean!!! literally jump out of the tank a good four inches to try and attack my hand!! the most agressive discus I have ever encountered.

i need to see it ! LOL
as others said its individuality of every fish that shine through , i had very aggressive wild F1 male who harassed every fish in the tank and wild Blues of a peaceful nature

[wgtaylor]

My experience, wild brown, blues and heckels have been easy going in their groups.
Wild green, especially tefe's always seem most aggressive. At least the submissive greens are much more submissive to a point I have to separate them.
Bill