Paint does not affect how long the turtle can stay underwater..
Turtles can stay under water from one hour to five hours depending on the species, water temperature ect.
2 hours
No they are born independent
Forever. How long can they stay alive underwater? It depends.
As sea turtles are air breathing reptiles, they need to surface to breathe. Sea turtles can hold their breath for several hours, depending upon the level of activity. A resting or sleeping turtle can remain underwater for 4-7 hours.
A turtle needs air to breathe. Some turtles can slow their metabolism, allowing them to sleep underwater, but it must come up to the surface of the water in order to breathe. It can hold it's breath and stay underwater awhile, but it must surface to breathe or it will drown. Turtles cannot breathe underwater because they do not have gills, like fish - they have lungs, much like human lungs. Some aquatic turtles such as the red-eared slider can hold their breath for 3-4 hours, which might make you think that they are breathing underwater, but they really are not.
Turtles have to go to the surface of water to breathe so if they get caught in underwater fishing nets they will drown.
Answer=========================================================Most aquatic turtles can pull oxygen out of the water, greatly increasing the amount of time they can stay under water. Big sea turtles can stay under for up to 2 hours, even sleeping while submerged.
My baby turtle sleep underwater. They need to be able to get on land and in fact they enjoy it! My turtles do fine out of water for an hr or more because they also sleep out of water. Turtles need time out of their terrarium so they can work out.
A penguin can stay underwater for about 15 minutes and can go to a depth of 1700 feet.
20min
about a minute