How long can it take for an Aquatic Ecosystem to develop into a terrestrial ecosystem?

I’d assume anywhere from....... 10,000 to 500,000 years maybe 1,000,000

These are only guesses, because I don’t know the exact time, because not every type species evolve at the same time (sorry for the poor grammar)

Hope this helps you

Since the time there were born it depends, there's fun violence, abuse, r@pe, kidnappings, threats, hostages ect.