Well, did you know that turtles grow according to the size of their environment?? If you keep your turtle in a small environment, it will never grow ( no matter how old it gets ). So I would suggest giving your turtle a bigger environment, wait , see if it grows. If it doesnt, you should go see a vet. But most likely, the turtle is not growing because of the space it is in.
i think it would grow with the turtle and then when it is an adult the shell would be fully grown
A Shark
bread
The Koi would be prey for the turtle. More than likely it would begin with fin nips to slow the fish down and make it easier to take bites out of.
Turtles grow up, they are born (hatched) in the shape of a turtle.
A full grown Green Sea Turtle can weigh anywhere from 390lbs to 460lbs. Though in some cases they have have been reported to have weighed up to 800lbs. that is heavy
slightly larger than a full grown box turtle.
2 pounds when fully grown
Maybe its at its fully grown size.
Under/less than an adult, not yet full grown, a juvenile.
The weight of a grown sea turtle varies significantly by species. For instance, a loggerhead turtle can weigh between 200 to 400 pounds (90 to 180 kg), while a leatherback turtle can reach weights of up to 2,000 pounds (900 kg) or more. Other species, like the green sea turtle, typically weigh between 200 to 500 pounds (90 to 227 kg). Overall, sea turtles are among the heaviest reptiles in the world.
Um snapping turtles are mature when their 11 or 12 years old