"mainly ants", do you mean harvester ants?

Sounds like a good schedule you have already. That's what I do. It may not make much difference unless it's getting pretty chilly at night, but I try to feed all reptiles when they are still good and warm. Their digestion and metabolism is dependent on temperature.
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"A man that should call everything by it's right name, would hardly pass the streets without being knocked down as a common enemy." The Complete Works of George Savile, First Marquess of Halifax 1912,246