Guppys grow to a bit more than 1" long. Plattys can get double that size. You need 1 gal of water for 1" of fish. Work it out.
Guppies are community fish that should never be kept alone or in bowls they require large tank, at least 10 gallons.
Any community fish type ,they should labled. dont put simi aggressive or higher or they will be gone.
I had a problem like this, a couple of fish pregnant at the same time. I would either keep them all the female guppies in the birthing tank or keep them in the community tank and when one of the female guppies give birth put the baby in the birthing tank. I did the second option and it was quite good, just don't overcrowd the birthing tank. :)
I'm not sure but some people say you should or the baby guppies will breed.
open your mouth and talk about guppies. oh and you should do some research on google.
How big are the two tanks, and how many guppies do you have
Guppies are tropical fish and should be kept around 70F to 75F.
If you wish to keep guppies you should read and follow the basic rules of successfull fishkeeping which are :- 1 inch of fish needs at least 1 gallon of water. :- Every tank needs a permanently running cycled filter. :- Every tank needs at least 50% of its water replaced every week. Guppies are tropical so they will need a heater/thermostat and a thermometer. They should be kept at around 70F. If you follow the above guidelines your fish should do OK. If you miss out on any of the above I can guarantee that your fish will be constantly getting sick and they will live shortened lifespans.
You should wait until the baby guppies seem to be big enough.
They should never be in the same tank because Guppies are tropical fish and like to be kept over 70F and Goldfish are coldwater fish and like to be kept below 70F. So Goldfish should not bite guppies because they should never be in the same tank together...
Guppies and Goldfish should never ever ever be together.... EVER.
You do not say if the guppies are common guppies or fancy, also how many male and female guppies you have, yes as far as the snails and guppies go, one point to remember is the tank water should be above 72 degrees and some live floating plants for the guppies too hide in.