Pauline, the best brands are Harrison's, ZuPreem, and Hagen

Harrison's is the most expensive. Gizmo, should easily go back on to them if she's had them before, but be warned Ammies are harder to convert to Harrison's, so fingers crossed she'ls not too used to seed

Greys, should be on high potency for life with no seed, but you can give the lifetime if you want to give a veriety of different foods

You could start by crushing the pellets and mixing it with mash, so they get used to the taste, or you can offer seed for 3o mins in the morning, then give them pellets, then offer a little seed again in the afternnon taking it away after 20 mins, and giving them back the pellets, then doing the same in the evening. Everyday you can reduce the amount of time that they have the seed.
Just be sure to weigh them every other day

best of luck hun
