So yesterday, for the first time I bought some guppies from the new petco near my house for an experimental 10 gallon terrarium I am building. I got 3 female and 3 male guppies. So this morning I wake up and look in the tank to see several little bugs swimming around, I look closer and they are little fish!!! First time I have ever had fry. Im a daddy 
So what can I feed them, or will they nibble off the flakes?

So what can I feed them, or will they nibble off the flakes?