Do these look fertile

[CassCats]

Yes. Once the oldest fry hit 3 days old, start offering food. And water changes every day

 

[Derekshatch]

I have atleast 100 and they are in a very small container. I wish I would have known that this many would hatch.

 

[Derekshatch]

Also should I keep the heater in the water it keeps it at about 80 degrees. Do you know if they fry prefer it warmer or cooler is what I am asking.