Guppy aggressive to guppies vs other species

[nymm1t]

Anyone have experiences with a male guppy being aggressive only to other male guppies while leaving other species (neon tetras, cory cats) alone? Or vice versa

 

[Naughts]

It depends what you mean by aggressive. They're not an aggressive species IMO but they can chase others endlessly and dance/ dart to assert dominance, which of course they don't need to do with fish outside of their species.

 

[Rocky998]

Other fish species do this as well. Some fish considered as really good community fish can be "aggressive" but only within their species which is what makes those fish community fish

 

[nymm1t]

It depends what you mean by aggressive. They're not an aggressive species IMO but they can chase others endlessly and dance/ dart to assert dominance, which of course they don't need to do with fish outside of their species.

Other fish species do this as well. Some fish considered as really good community fish can be "aggressive" but only within their species which is what makes those fish community fish

Thank you. That's good to know. He tends to just follow/harass nonstop. Nothing crazy like biting or anything although some mornings, I noticed some nipped tails.

 

[GaryE]

As well, if it's a male only group, there will be sexual aggression within the species. They are wired to breed.

 

[nymm1t]

As well, if it's a male only group, there will be sexual aggression within the species. They are wired to breed.

That's true but as of now, females are out of the question as I don't think I can handle babies yet lol. But good to know that the aggression will stay within the guppies only.

 

[Colin_T]

Guppies live in groups of males or females and they have a pecking order. The dominant fish will have a few mates and they bully everyone else into submission. If you have 2 dominant fish from different groups (eg: buying them from different tanks in a shop), they will fight and the strongest will eventually kill the weaker one.

If they have been arguing for more than a week, then remove the weaker fish and put it somewhere else because they won't get along.

Watch the dominant fish's eyes, they go black when the fish is feeling angry at another fish.