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What's the best food for my red slider turtle and how much to feed?

Updated On September 23rd, 2025

Pet's info: Reptile | Aquatic Turtle | Male | unneutered | 14 years and 6 months old | 4 lbs

Hello i have a question about my red slider turtle. He has been with me ever since i was 5 and i never took care of it as much until now that im older and i have its lamp and heater and clean water and everything but i jus still dont know what to give him for food. I give turtle food and like berries and crickets but idk how much a day or when i should feed him. Thank yoj

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on July 28th, 2019

The trick is to feed them only as much as they need, and will eat, because any uneaten food will tend to dirty their water. A good rule of thumb is to offer your slider an amount of pellets that is roughly equal to the size of their head once every other day. Commercially available pellets should be the staple of your slider’s diet. They’re specially formulated to meet all the dietary needs, and can be supplemented with a variety of different foods. Feed him an assortment of fruits, vegetables, and proteins two or three times per week. Adult RES need more plant material than protein. If you’re providing him with an age-appropriate commercial feed, along with assorted proteins, leafy greens, fruits, and vegetables, you need not worry so much about the details of what you’re feeding him. The emphasis here is on variety. So long as his diet is varied and he is eating plenty of plant matter, he will have all the nutrients he needs to be healthy. Some foods, however, should be avoided. These include raw meats from the grocery store and processed meats, such as hot dogs. Sliders cannot eat fireflies, chocolate, avocados, or onions. In general, you want to avoid all processed foods, except for those that have been made especially for aquatic turtles.

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