So I was checking out my feed store today and found out that if I want Mazuri 6F I'm going to have to special order it. However they do have 'teklan 2018' which I have never heard of so I was wondering what anyone has to say about that particular brand/product? Is it good enough that the rats will survive and have good production rates or what? Another thing about it is that it comes in ~30lb bags and costs like $15, is that a fair price?

Thanks!!