Actually, I hope you didn’t throw out that medley stuff. Even though it’s not good for her, it’s best to transition slowly, especially at this age.
We just had a discussion about this – about even when you switch from something unhealthy to healthy, you should do so slowly, because the bacteria that was digesting all of “original” food may die off in larger numbers if you cut it out all together, and when large numbers of bacteria die off, they emit a gas that can cause digestive upset. (there are different kinds of bacteria for different kinds of elements in food) So, though each bunny is different, it is a good idea when changing to mix in the new food with the old and slowly increase the new with the old.
Alfalfa pellets are okay for her at this age as she is growing, and unless she continues to have digestive upsets, the extra fat and calories are fine for all the growth spurts she’s having. At 7 months she’ll need to start switching to Timothy.
UPDATE. OH! It looks like you bought Timothy, okay, well this will definitley be a diet shift, and you need to go slow. Mix the OLD with the new. Do not throw the other away. If you did, I am sorry, I think you should at least buy some of the old. It really is important at this age to go slow even when you are switching to a healthier pellet.