I am into sprouting for my Fids.
I keep it simple and mostly just sprout Mung Beans.
If you do a search you will find them high on the food scale.
I understand that they do need to be fresh and are that their best when the tails are under 1/2in long.
I do other seeds, but each time I only do one type. This is because not all seeds sprout in the same number of days.
As you can see in the pics I only do a few. And one of the most important things to remember is that they do need to be rinsed at least twice a day, and more often if you have trouble sprouting.
The best thing is to try them yourself and if they taste funny throw them out. Same with if they get slimy.
oh! Another thing is you do need to get fresh seeds.
My guys do enjoy them.
First day I just soak them and rinse several times.
You can feed these to your Fids from day one if you like.
If all goes well they should look like this in just a few days.
As you can see here there is almost 100% strike rate. This is very important, as bad seeds will go rotten very quickly, spoiling the rest.
Very simple to do and great food, for both you and the fids.