How many guppy fry will survive if I leave them alone?

Guppies can multiply out of control pretty quickly, as they grow it can be difficult housing them without overcrowding, as I found out recently as my first fry grew to adult size, I saved all my fry and ended up re-homing 250 of them to someone who wanted to watch them colour up, I still had about 50 and as they grew the tank become crowded.

I put my fry in the community tank when they were big enough not to get eaten, they got chased for a few days but it calmed down, I gradually added smaller fry, which the adults by then no longer touched, most newborn guppies survive these days, although a few are eaten, I still have too many.

You may find your first drops become food for the other fish, but eventually they will leave them alone and a lot will reach adulthood and may overcrowd the tank, guppies have so many babies! My young females often have small drops, but my larger females may have over 100 fry, 60 a month from one good sized female is about average. As they are prey for other fish in the wild this means at least some will survive to adulthood and breed, in the aquarium they have no major predators other than their parents who soon lose interest, hence the problem, it may not be such a bad thing that some go towards what nature intended....without being too blunt about it, but in a way you are then left with the strongest fry who can outrun the adults, so there are benefits.

If you want to save as many fry as you can floating plants like elodea and cabomba really help, I always find a bunch of fry hiding out in the plants away from the adults, they come out at feeding time, bold as brass and rarely does an adult go for them, if they do the fry zips off and the adult gives up quickly.

Good luck with your fry :)

If there is plenty of hiding room, it would not be terrible crazy to have all 12 survive. If the parents are avid hunters and there is no hiding room, it could be possible that none survive. With the five adults as the only fish in the tank, other than the fry, in a 20 gallon with hiding room, it is possible all 12 will survive. A safe bet would be about 8-10 survivors though, on average, assuming a few are genetic weaklings or will be eaten.

If you wish the fry to outlive, you ought to positioned them in a separate atmosphere. When they're no less than part the dimensions of the most important fish within the tank, then you'll remember them risk-free to be back to the important aquarium. BTW, you are forgetting that the tiny fry is probably not powerful ample to withstand the pull of the suction clear out (i.e., motorized, hooked up over the external rim of the aquarium), assuming you've got such, which so much individuals with ten-gallon and greater aquariums probably do. While it would now not reason them any damage, you would now not notice that they're "lacking" till it's too overdue (even though there may be tons of water and meals within the clear out housing, they want room to transport and develop, to not point out that there are possibly detrimental micro organism within the clear out).

I would guess that the survival rate will be about 50/50. You could call it your "natural tank". Since you only have guppies in there, leaving them alone would be fine. Have any catfish? add a few corys. They will help keeping your water balanced out better. Enjoy

Guppie Fry

What kind of fish do you have

ya, all of them, they will all be canabalized by one of them and then the canibal will die of overeating! hahahahahahahahaha!!!!!