Usually, yes.
yes
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.
yes
The only difference is the tail is about 1 cm bigger Males usually aready have fancy tails i find
Guppies can mate in a community tank of tropical fish around their size. Be sure to add lots of live plants!
Male guppies chase pregnant female guppies because they are trying to mate with them and fertilize their eggs. This behavior is natural for guppies and is a part of their reproductive process.
No..... you have to have the second half of chomosomes....
yes the guppies might eat her fin because they it looks like food .
They are so obviously different from one another there could not possibly be a mistake in sexing them. The females are large and grey. The males are small and colourful. What is hard about that?
Simple answer is yes. Guppies mate and produce young under almost any reasonable conditions. The presence of other fish will not bother them at all provided the other fish are not predators and the guppies under pressure for survival.
No, they are to different types of fish and it would be impossible to breed them.
yes.... thats why hey are called "guppies...."