Welcome Zach and congrats on now being "owned" by an African Bullfrog. Kevin pretty much nailed it on the head concerning your questions. Adding my own personal experience, I give both of my ABFs one rodent a month, nothing more. The rest of their diet consists mainly of large earthworms (lots of protein), the biggest size crickets I can buy gutloaded to the extreme, with a treat of superworms thrown in for mere enjoyment on their part. Also once a month I give a frozen shrimp as a protein packed snack. As for how often you should be feeding yours, a lot of that will depend on age and size. Younger animals of any species need to be fed more often and the appropriate sized food. Frogs can choke. Once they start adding more girth than overall size, cut back to two to three times a week. Remember frogs and toads can become obese on the wrong diet, and that will shorten their life. As well, don't forget to add calcium. Lack of calcium can lead to several diseases in amphibians so you want to make sure yours is getting enough. Young ones need a more regular supply than an adult. Kevin suggested a good substrate combo. You want something that minimizes impaction risk. I change both my ABFs water dish every day, and sometimes twice a day depending on how much they gross it up. Both tend to like a soak and a poop after a good meal, and they seem to enjoy doing it in the water. I grabbed a cheapo toothbrush and scrub it out under hot tap water and then refill it using dechlorinated water. Hope this helps. Enjoy your frog! Do you have a name and any pictures as of yet??