I doubt they eat crickets. Also too many food items in the cage will stress out the snakes. Ringneck Snakes are not the easiest reptiles to keep (in his book "Snakes of the United States and Canada: Keeping them Healthy in Captivity" John Rossi rates them a 4 on a scale of 1-5 with 5 being the most difficult).

I've found many, many Ringnecks in the wild and there's almost always salamanders in the vicinity. Though they do eat other things, salamanders are considered a favorite food item and many will only eat salamanders in captivity.

Tim

Third Eye