Since you haven't provided any specifics on the size of the tank, i say 2 females and 1 male because they multiply more then rabbits. i bought about 6 last year (cant remember how many were females and how many were males) and now i have over 200 so beware.
Well this is what I've read from a site: A Guppy fish can be kept in a 2 gallon aquarium, but the Guppy should ideally not be kept alone and larger aquarium that can house several Guppies is preferred. (notice it said seven)
How big are the two tanks, and how many guppies do you have
Once or twice a day
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.
20 guppies in 8 gallon.
5 1/6= 5/30
Fish that have long, wavy fins should not be put with guppies, because guppies will nibble their long fins. Also, many bigger fish will eat guppies. Keep a separate tank with guppies and a few "cleaner" fish, which do not harm guppies.
The more "experienced" the fish is, the more fry she will have. I have had younger guppies have only 5 fry in the first batch, as well as older guppies (approx. 10 months to a year old) that have had 100.
About 5 or 6 guppies.
A Lot.
8 Zebrafish4 Goldfish11 Guppies
Yes - there is virtually no limit to how many female guppies can live together.
yes they can, depending on how many guppies you plan on getting.