More molly babies -- how old before they can move to a new tank? Help!

I have 3 octos, 3 adult mollies, 3 tetras, 5 older babies and some 10 or so fry. The new water measures 40 now.
 
Your stock is not too heavy for a 37gal, but your Nitrates are high. At 40ppm you are not tooo bad. Keep up with the water changes and you should be OK.
 
I have 3 adult mollies
5 older molly babies
3 octors
3 tetras
and the fry (11 ?)

37 gallon


new water is measuring 80 today on nitrates
 
Still not too bad. How big are the adults??
 
AquariaCentral.com