Login to your MCPE Index account, click Add Server and paste the IP into the field asking for the IP and then copy the port which you forwarded before (default is 19132) into the port field.
A hatcling is any animal that is newborn from a hard shell. Turtles are born from a hard shell cover. Thus, it should be called a hatchling. A hatchling is the newborn of animals that develop and emerge from within hard-shell eggs. The offspring of birds and reptiles are often hatched naked and with their eyes closed.
The best thing to do when you find a baby turtle is to identify the species and then help get it where it is going. For aquatic turtles, this means finding a nearby body of water, placing them at the edge, and allowing them to enter the water at their own pace.