Best option

[Selenasue17]

I have a very pregnant guppy- debating on putting her in a 3 way isolation nursery tank or leave her be and just add floating plants for the babies. We have a lot of guppies, a few serpae tetras and Molly’s.. just don’t want them to eat all the babies.

 

[JamieBAnd]

My many, many guppies started at just 8. They’ll breed, and breed, and breed, but if you would like the population to increase, add plants and hiding spaces for the babies to hide in. But once you reach how many you want, the only way to prevent more breeding is to separate the males from the females. I currently have about a hundred gallon indoor pond set up just for guppies, and am enjoying it and then.

 

[Hpup456]

Seems like the serpae tetras would be fast and chase the fry, I dont know since I dont have any. It also depends on how many fry you want. If they go in the breeder/nursery box then you will get all the babies which do eat and make ammonia. But if you let them be born in the tank then you will get a lot less depending on how many hiding places your tank has. They also grow faster sometimes in the tank because they eat "tiny things" off the plants and decor.