Yes. Livebearers will breed anywhere under nearly any condition.
Yes, but you can only have one in there, and it must be filtered and heated.
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.
What are guppies
Guppies need a 40 gallon tank. Maybe 3 at the most if you only put in plants and maybe one rock. answer 2 by LipRingz:they don't need a 40 gallon tank i had 5 guppy's in a 2.5 tank in a 10 gallon you can have prob 8-9 guppy's
You could either sell some of your guppies so as they won't breed, sell the guppy babies you have online or at yur local pet store or keep one of your guppies in one of the seperator tanks you get for your main tank.
Guppies breed easier if there are more male than females. My female guppy breed easily when i had 4 male and 1 female, but 3 male and 2 female would probably work as well.
the rule of keeping fish in a tank is 1 gallon per inch of full grown fish, so 3 guppies will be good but just to keep them safe hav an air pump or just keep 2 of them
No. A one gallon tank is not appropriate for a singular goldfish much less multiple. A ten gallon tank is the bare minimum for a singular goldfish and breeding would require a tank of twenty gallons or more. A one gallon tank cannot handle the chasing that proceeds goldfish mating nor maintain a water quality that is suitable for raising goldfish fry.
The seven stages of pregnancy for guppys can last one month small-pets.lovetoknow.com/pregnant-guppy-fish
I would get your new babies at least a 20 gallon tank. Or, two ten gallon tanks and put half of them in each. For small community fish like yours, you need one gallon of water per inch of fish. Guppies get to be about an inch long as adults. Baby guppies dowell in small spaces a quart jar is fine to keep them from being eaten by their parents. You can by little tanks within tanks to put in your larger tank. These allow the babies aireated water and keep them part of the community without becomoning a meal. In general fish will grow to fit the space they have.
NO! you will need at least 5 gallon for those
Well, it depends on their size. From what I've heard, you can put one inch of fish into a tank per gallon, so: 5 one inch fishes of 1 five inch fish etc. It doesn't matter about the fish unless some are aggressive and the others are not.