How do you feed them out of their house.
-my old turtles live outside the house (though within the confines of our garden) so basically they're free roamers so what we do is that daily we leave fresh food on a particular bowl together with a "turtle tub" with fresh water where they could drink from and "swim" eventually. The turtles only come out in the open to soak an d to basically feed.
Alone or together?
-we have only one food bowl
for all turtles... (imagine a big plant pot "tray") where all the four oldies could eat
Put the turtle in or food first?
-my four twelve years oldies are free roamers so we just leave the food and water
How much water?
-water is placed on a 12 inches by 24 inches plastic container about an inch deep filled with water so they could drink up and "chill out" afterwards since for the past twelve years this has been their routine... chillin out in their drinking water..LOL
What size bowl?
-12 inches by 24 inches plastic container about an inch deep
as for the what age an adult/ im not really sure.
hope this helps