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Every time I read about guppies I'm told how peaceful they are, But I've got a 25gal tank with 6 glowlight tetras and 2 guppies (one adult and one baby) and I find the guppies pick at the tetras. I'm not sure if I should be concerned about it because they dont appear to be doing any damage to the fins of the tetras and the tetras dont seem stressed out. But I wonder if any of you guys have incounter this kind of nipping from guppies?

YUp, they are bossy sometimes.

They rarely do any major damage, and i'm suprised they are going the glolites when you have 6 of them, but they do end to want to be the dominant fish.

For animals, the entire universe has been neatly divided into things to (a) mate with, (b) eat, (c) run away from, and (d) rocks. - Terry Pratchett

just a story, but i put my female guppy in a 5 gal tank to give birth, she didnt give birth for a few days so i put the male with her overnite, just to c wot wood happen, next mornin, the female bit a huge chunk outta the males tail and top fin.my females get annyoyed easily

~elaine~

When i had Guppy's, they used to chase other peacefull fish, but nothing nasty happened. Just keep an eye on them & see how it goes.


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Erm well....if you have males (or one male) and no females for them to take their "playfulness" out on, they will sometimes harass other fish. I've found if you get more male guppies (if you don't want any breeding going on ) they will tend to stick with their own species at least and bother the other fish less. Guppies aren't generally defined as shoaling fish but they are very social and definitely benefit from the company of their own species. Try getting a few more males, they could be feeling "happy."

If that doesn't work then I agree with what has been said above, sometimes they can just be a bit bossy.

I could be completely wrong here but I was under the impression that livebearers will occasionally pick off small parasites from other fish. I know mine scour any alge in the tank (had mine going 2 years with NO alge at all.)

Its nothing really to worry about, my male guppy tries to interupt my male molly from mating with the other females. But I just got the guppy 2 girlfriends so that will hopefully stop soon.

In any event guppies are too small to do any damage to any fish in the aquarium. Even my fry are safe near mine