Care, Health and Growth, Crested Geckos, Geckos

Can Crested Geckos Eat Rotten Fruit or Not?

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by The Pet Engineers


Can crested geckos eat rotten fruit? Overripe fruits or rotten fruits are commonly eaten in the wild by geckos. But, does that mean you should feed your pet crested gecko rotten fruits?

If you plan on doing so, which rotten fruits are safe for them? In this article, we highlight how to feed rotten fruits to crested geckos and which ones to avoid.

Can Crested Geckos Eat Rotten Fruit?

Yes, crested geckos can eat rotten fruit. In the wild, geckos eat overripe fruit (almost on the verge of spoiling) or rotten because they find them sweet and it’s easier to eat.

Can Baby And Juvenile Crested Geckos Eat Rotten Fruit?

Yes, baby and juvenile crested geckos can eat rotten fruit.

Should You Feed Rotten Fruit To Crested Geckos?

Yes and no. Not only fruits are good for crested geckos and some contain dangerous chemicals that can cause illness or death in a gecko. The situation won’t be different even if the fruit is rotten.

We recommend fruits that are safe to eat such as honeydew melons, pears, blueberries, blackberries, etc. These fruits are safe to eat even if rotten.

rotten pears
Geckos can eat rotten pears

How To Feed Rotten Fruit to Crested Geckos?

Rotten fruits should be served like any other fruits. Depending on the size of the fruit, it can be served whole, mashed, blended, or sliced.


Slicing fruits into pieces is best for adult crested geckos. We also recommend slicing fruits into small pieces if it’s large in size. Sliced rotten fruit can be served with other foods to create a balanced mix.

  1. Get rid of the fungi by cutting or peeling away.
  2. Wash the rotten fruit.
  3. Slice it up into small pieces.
  4. Serve to your crested gecko.


Blending or mashing fruits is best for baby and juvenile crested geckos. Here’s how to do so:

  1. Get rid of the fungi by cutting or peeling away.
  2. Wash the rotten fruit.
  3. Place in a blender or bowl.
  4. Blend or mash to a paste or puree. In this step, you can other fruits, insects, or larvae to the rotten fruit.
  5. Serve the paste/puree to your crested gecko.

Rotten Fruits To Avoid Feeding Crested Geckos

Citrus Fruits

Citrus fruits such as grapefruit, oranges, tangerines, lemon, etc. shouldn’t be added to a crested gecko diet.

Citrus fruits contain high levels of oxalic acid that bond with calcium and magnesium preventing their absorption and leading to metabolic bone disease.

Oxalic acid is an anti-nutrient and foods that contain medium to high levels shouldn’t be avoided. Moreover, citrus fruits have a sour taste which geckos don’t like.

Citrus Fruits
Citrus Fruits are very dangerous for crested geckos

Avocado Pears

Although avocado pears are healthy for us humans. They are dangerous to geckos. Avocados contain a chemical called persin that is dangerous to them.

Feeding avocado pears to geckos will cause illness and death if a large amount is fed.

rotten avocado
Rotten or not Avocado is dangerous for crested geckos


Tomatoes might be a bit of a surprise. Because we use it in almost all our cooking. So why would it be dangerous to geckos? Well, it has high levels of oxalic acid.

This makes tomatoes unsuitable to be eaten by crested geckos even if it’s rotting or spoiling.

Fruits with High Oxalic Acid Content

Since we can’t mention all the fruits in this article. We advise that geckos shouldn’t be given fruits will high oxalic acid content even when rotten.

Oxalic acid prevents the absorption of nutrients and minerals by binding with them which causes deficiency. Hence they should be avoided.

Tomatoes have high levels of oxalic acid


Most rotten fruits are safe to be eaten by crested geckos. In fact, overripe or rotten fruits are the best for them. Because in the wild, that’s how fruits are eaten by geckos.

That’s it on whether crested geckos can eat rotten fruits or not.

The Pet Engineers

A team of pet lovers. We have owned various pets over their years. From dogs to reptiles, etc. Our love of pets, strive to us to create up-to-date and accurate helpful guides on pets.

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