I introduced my fish today they are platys i have cycled my water for about 2 weeks now. I don't have a heater or a light.
4 of the platys are pregnant(i have 4 females and 2 males). Most sites suggested i have 2 females for every male.
The males seem to get aggressive when i have a light on in my room, i don't know why.
If i am missing anything direly important please let me know I have
API test kits and my levels are normal.
One of the fish is acting very strange it isn't moving alot. i introduced it today so I'm not sure if it is anxiety or if it is ready to give birth. Any ideas?
Will i need a heater if i want them to give birth and if so what wattage for a 10 gal?
Since I want them to have babies(and keep the babies alive) is it suggested that i get a maternity section of the mother?
I also want to know how pregnant my fish are. they are all around this size.

thank you for your help.