I don't know if it's available where you are, but IAMS has been great for Toffee and Fudge - they have regained their strength since they have been on the dry food.
syzygycat I've never rehydrated either food. The rabbit mini nibs (which I discovered is an entree' not treat) is too hard to rehydrate. Never tried with ziwi. My boys don't like rehydrated things, anyway. Not sure if it's the texture or taste, but they prefer dehydrated foods and treats to remain that way.
Like I mentioned, dry is such a small part of their diet, and I only give it as a snack, so moisture isn't really a concern for me. They have a fountain and mostly eat wet. Though I wish they liked rehydrated food. I have more buying options online lol
The IAMS dry food here in the states has a lot of corn (or pea starch for the grain free versopm), either recipe has too much sugar for older cats.I don't know if it's available where you are, but IAMS has been great for Toffee and Fudge - they have regained their strength since they have been on the dry food.