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My turtle's shell is curving. What causes it and how to help?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 95 lbs

I have a turtle I got as a hatchling whose shell has started to curve. I’ve read this could be due to too much protein, too weak of uv/uvb lights, or a combination that makes him grow too fast for the shell to keep up. I’m going to the pet supply store to get a new bulb tomorrow and he eats feeder fish as well as a variety (gold fish food he steals, dry meal worms, pellets from two different brands) of dry foods. How can I help him better?

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on July 29th, 2019

He should be eating some greens and vegetables as well. Avoid the fish flakes as they are high in protein. Use both a multivitamin powder and a calcium powder on the food. Rep-Cal and Zoo Med products can be found in the local Petco. Make sure the UVB light is not blocked by glass, plexiglass or fine mesh. Depending on the strength of the bulb, place the source between 12 and 18 inches from the surface of the basking area. Provide a piece of cuttlebone to float in the tank as a calcium supplement for when he wants to munch it. If you can provide the species of turtle in a new post, we may be able to provide more accurate and comprehensive advice.

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