I Have Guppies In A Tank. I Don't Want Them To Get Pregnant. Is There Anyway They Won't?


5 Answers

Anonymous Profile
Anonymous answered
Get all males. Sell the females back to the local fish shop if you like or euthanise them if you can't find them homes. DON'T EVER EVER FLUSH FISH, NOT EVEN DEAD ONES! By doing this you introduce new fish into waterways in areas where they don't belong, along with any foreign bacteria they may be carrying, and this can decimate native fish, bacteria, whole ecosystems.

You are fighting a difficult battle here because female guppies can be born pregnant!
Best way is to only get males.  They are the most colourful and pretty ones anyway! The easiest way to tell the sex of the fish is to look at the anal fin (last fin underneath before the tail).  In a male, that fin will be decidedly spike-shaped, and in a female it will be a more rounded, fan shape. A pregnant female will have a dark spot right in front of that anal fin (see picture). That dark spot is the heads of the fry you are seeing.  However if you don't want lots of guppy babies, and you do have pregnant females, I wouldn't worry too much, you don't need to do anything as the guppies will quite happily eat the fry.
The lower, more colourful fish is the male - look at the shape of the anal fin. Notice the dark egg-spot on the female, and the fan-shaped anal fin.
Anonymous Profile
Anonymous answered
Usually when you buy a female they are already pregnant, and the thing with the females is they only have to mate once to stay pregnant the rest of their lives because their bodies store the sperm. The fry make good free fish food if you don't intend to raise them of find them homes.
kenny 186 Profile
kenny 186 answered
Only if you use protection
Rosalie Nathan Ibsen Profile
You can give them pins. Non-pregnancy pins.
Anonymous Profile
Anonymous answered
Don't have male or sell the babes or seprat the tank and ps  she can hold up to 5 lots os sperm

Answer Question