Not sure what your tiny new borns are, probably snails, but with a red dot on belly is confusing me a little, most snails do not have red dots on body.
Have never seen tiny,tiny RCS fry, have seen them a bit bigger, maybe at 5 mm as thats when they come out of hiding a bit more.
Tiny RCS hides extremely well so got a bit of doubt could be that but certainly could be wrong.
Would not really go below 72F/22C for too long, minimum would be 68F/20C could get away with for a short while but would be wary of doing that for any length of time.
BTW they wont breed at temps of 68F.
Have never seen tiny,tiny RCS fry, have seen them a bit bigger, maybe at 5 mm as thats when they come out of hiding a bit more.
Tiny RCS hides extremely well so got a bit of doubt could be that but certainly could be wrong.
Would not really go below 72F/22C for too long, minimum would be 68F/20C could get away with for a short while but would be wary of doing that for any length of time.
BTW they wont breed at temps of 68F.