Dubia roaches are a great food source for many reptiles. They are high in protein and calcium, and are easily digestible for most reptiles.

The number of dubia roaches to feed your reptile depends on its size and appetite. As a general rule -

Leopard Gecko & Crested Gecko:  Amount up to their headsize (As the overall size of the dubia roaches can vary, adjust the amount accordingly.)

Dubia roaches should be stored in a well-ventilated container with egg crates or cardboard for them to climb on. They require a warm and dry environment, so keep them in a room with a temperature between 75-95°F and a humidity level of 20-60%. 

Gut-loading is the process of feeding the dubia roaches a nutritious diet before feeding them to your reptile. Offer them fruits, vegetables, and commercial gut-loading products for 24-48 hours before feeding them to your reptile.

Dubia roaches can't climb glass or plastic surfaces. So it will be fairly easy to keep their enclosure secure with a tight-fitting lid or screen top.