I need some help with the baby swordtails so I have a 3.5-gallon tank for them but how many should I be expecting? Can someone walk me through what I should do? i have a 36 gallon tank and the 3.5 one should I buy like a separate for the pregnant fish? Also, I want to get cherry shrimp in my 3.5 gallons tank. Will they eat the fry?