sounds like you have a male guppy harrassing a female. Simply go and buy a few more female guppies and that way the male will have more than one female to harass.
No, he will get killed by the guppy.
Usually, yes.
yes
Guppies are live-bearers, which means their eggs are kept inside the mother until birth when the young are born alive and can immediately swim. Depending on a number of factors, size, age, and breed of fancy guppy, you can get anwhere from a few young to over 50 at a time, the average is around 25 fry.
yes
The only difference is the tail is about 1 cm bigger Males usually aready have fancy tails i find
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 guppies might eat her fin because they it looks like food .
fish tank
No,but guppies(livebearer types) can live with small sharks like dwarf shark e.g.
Male fancy guppies are much more brightly colored and well.. "fancy." Females can also be colorful but they're normally more plain.
The answer depends on the number of guppies. A few guppies can live in a 2.5 gallon tank or larger, temperature between 72 and 80 degrees Fahrenheit. Many people raise fancy guppies in 5.5 and 10 gallon tanks.