guppy agression

[platybreeder26]

So today for my twenty gallon aquarium, I have one male guppy, and today I added two more males who are a little bit smaller. As soon as I added them in, my old guppy starting flashing at them and ramming in to them, biting them. Is this normal agression and what can I do to fix it?

 

[platybreeder26]

It breaks my heart to see this, and I am afraid I am gonna lose all three of them. The old guppy was my first fish, and I dont want them to all die.. I want to return them to the petstore, but I am not old enough to drive and my mom wont let me.

 

[ImACoolguy]

Typical male aggression.. Add a bunch of females or rehome the 2 new ones.


Caleb