Guppy population control

[Mr. Crayfish the great]

We put our endler live bearers. in our outdoor 300 gallon pond with our 5 goldfish and in two different 50 gallon ponds. Last year, we forgot to take them in and there was a massive die off. we then brought the remaining 50 or so that remained indoors. over the winter and through the summer, I will estimate and say there are over 300 of them.
Does anyone have any idea on how to population control these guys? I don't want to freeze them to death but I don't think 400 guppies will do well in a 20 gallon high while there population grows for the next winter.

 

[OrionGirl]

Pretty much any piscine predator will take them--gouramies, Oscars, anabantids, a huge variety of cichlids, leaf fish, catfish etc.

In my experience, endler-guppies are breeding machines that fill all available space rapidly. Even with predators.

 

[enrique4jc]

Sell to a local LFS?

 

[ustabefast]

Good luck selling them to anyone. No one wants female Endlers or especially Endler/Guppy hybrids if that is what you have.
I even have hassles trying to give them away.
I do cull out the males when they show colors and then use them as dithers in other tanks.

i once tried keeping pure Endlers with Heterandia Formosa to see what happened.
The Endlers easily outcompeted the Least Killies.
These little guys are survivors and many even made it through a winter in my outdoor pond.

 

[enrique4jc]

Ah, I was just thinking guppies. Yeah, probably be hard pressed there. Feeders maybe?

 

[Mr. Crayfish the great]

Maybe I could put them in a container with an overdoce of clove oil? maybe that would be ethical (ish)?

 

[OrionGirl]

Killing animals because they are inconvenient for you isn't a call I can make. It's not something I would do. I had no problem leaving the fish in the tank and letting them reduce numbers on their own, or feeding a predator. Ultimately, they took over tanks and that impaired the other species in there, so I made the decision not to keep them anymore and rehomed all of them.

 

[FeelinALittleFishy]

Do you have any Cichlids? Instead of buying them feeders you could use the guppy/endlers