I found a local reptile store that sells frozen pup and small rats so I bought 20 frozen pup rats; frozen they weigh about 35g. My BP weighs about 540g and 10 to 15% is 54-82g per feed. so I should be feeding her about 2 a week, right? So after she eats the first one and is moving about in the her feeding tub do I just dangle another in front of her face?