Right now I have 3 swordtails in QT that I'm planning on introducing to my 75 gallon tank. The male is noticeably larger than the 2 females (the male is 4-5 inches long, the females are 1-2 inches long-ish). Do you think the females will be eaten if I put them into my 75 gallon? The main cichlid I'm worrying about is my female copadichromis which is 6-7 inches long. I also have a few adult-sized peacocks and a 4 inch long salvini that might also eat the swordtails.
Also, at what size are swordtail females able to give birth to young?
Attached is a picture of the copadichromis female that I mentioned:

Also, at what size are swordtail females able to give birth to young?
Attached is a picture of the copadichromis female that I mentioned:
