In the field O.s feed daily. In fact, they will often make several foraging excursions away from their burrows. Most prey items are small.
To judge how much to feed a stomatopod, look at its stomach. An hour or two after eating ist fill, the stomach contents will turn dard and are visible through the carapace as a dark spot. (This is harder to see in a male than in a juvenile or female.) The stomach of a 4 inch O.s is a little more than a cm long and will hold a bit more than a gram of food. In other words, they can eat a cube of food about 1 - 1.5 cm on a side in one sitting. Because the stomach clears in a few hours, they in theory could eat two or three times this amount in a day, but they usually don't.
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