Watermelon is perfectly safe for tegus to eat and it can be a healthy addition to their diets in moderation. It is best to serve watermelon without seeds to avoid the risk of constipation, but other than that, it’s one of the healthiest fruits to offer tegu as a treat since it’s relatively low in sugar.
Similar fruits like melon and cantaloupe are also great choices, and may be slightly better from a nutritional point of view, since watermelon mostly contains water (as the name suggests).
As a rule of thumb, no more than 10% of your tegu’s diet should comprise fruits, and only a small part of this 10% should come from (water)melons. Colombian gold tegus should also be fed less fruits compared to Argentine black and white tegus and Red tegus.
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