What are some signs that will tell me that my platy is going to give birth...

Question

i know that like there belly will be boxlike and how will it swim like she would hide under the big ship and but how will she swim will she swim normal will she swim at a slant or will she do what a molly does like swim up and down the sides and corners and she never swims in the front of the tank like she will be behind the big ship or she will be around the long flowing plant and her anal area is red and i dont even know if she is pregnant please thow mainly i need to know how will she swim swim cuz she is very calm the last time i saw her just like a normal fish except for she is a very FAT fish and also do i have to seperate the other fish if i want the fry to live there are two guppies two teras and one glass fish but i say there there are about a hundred different hiding spot in the ten gallon tank

Answer 1

as long as you have enough cover, a few will always survive

as for what other signs

usually they start to swim fast up and down and stop eating