My female garter is about 3 years old, 22 inches long. I've been feeding her every 5 days, alternating between pinkies and silversides. I'll feed her a pinky and then in 5 days I'll leave about 4 silversides (2 inch ones) in her water dish for her to eat at leisure, and then 5 days later I'll feed her a pinky again. She eats all of the fish over the course of a day. She's pretty active and I've never had her turn down food, so should I be feeding her more often?