I feed dog food with with a whole grain/seed mix as a normal diet. I also supplement once or twice a week with fresh fruits and veggies. I give left over pastas and bread and anything else I think the little bugers will eat. Whenever I clean out the fridge I make a rat feast. I haven't had any trouble with loose stool. If you are going to do that you might want to check out a pet rat site to get a list of items you should not feed. You should know if you visit a pet rat forum it is not considered polite to discuss raising rodents as food for reptiles. Off the top of my head, I know too much cabage can be bad for them. Mine love fresh green and red leaf lettuce. Also avoid anything with artifical coloring because that is bad for them but can also kill your snakes. Oh, they also love frozen peas and carots, cooked fish and grapes.
BTW - I don't know how much it affects the health of my reptiles but the rats sure are healthy, and I have a garbage disposal for left overs I know my family isn't going to eat anyway.
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Anna
The Zoo
Corns
1.0 Snow - Cornelius
1.1 Ghost(pastel) - Gray Ghost & Pink
1.1 Amel - Parker & Scarlet
0.1 Hypo - Nikko
0.1 Anery - Missy
0.1 Hypo Motley - Cordelia aka Cordy
Boas
0.1 Columbian (BCC) - Bella
Lizards
1.0 Leopard Gecko - Leo
Rats
I have two pet rats and about 14 breeders
Cats
1.1 Siamese - Blue & Fiona
0.1 Gray DMS - Druscilla aka Dru
Plus 3 kittens
Horses
1.0 Thourghbred (Hunter/Jumper) - Morgan's Majesty aka Cody
Plus whatever animals I am fostering for the local shelter!