Regal Rat is actually a very high quality rat diet, I don't have the ingrediants list at the moment, but compared to most, it's actually very good. HT has no corn or animal bi-products in it, but still is mostly made of fillers.
What you could do is make a homemade diet based off of Shunamite, using Regal Rat(if they'll eat it) or HT as the base, a very low protien quality dog food(Pet Guard Vegetarian is great) and a mixture of whole grain cereals. Most of the cereals mentioned on Fancy Rats(UK rat forum) are not available in the US, but I've found US equivalints of most that I use if you want the list. Minus the dog food, my little ones have a Shunamite diet they get a few times a week. I keep my RR and the mix seperate, because otherwise they was a lot of settling and they wouldn't get enough of the mix or blocks.
The Debbie Duccom diet mentioned above is an okay diet as well. Some rat lovers think she is too "hollier than thou" which I agree with for several reasons, but her diet is okay. I'd supplement with RR or HT too though, so they can have something crunchy to munch on. Maybe feed it in the morning, and have blocks available to them at night?
Suebees is kind of high in fat and sugar, and many people have had problems with obesity while using it, which is why I use Shunamite. Shunamite is actually the UK version, and I think it's better :P
Aww! That's so cute! Mine follow me around too!
If I'm near their cage and am busy cleaning or with homeworl and don't give them attention, they'll all climb onto the bars and look at me with these sad faces until they get a cuddle
You're lucky they don't bite hard. Juno is a poo and thinks I'm a giant treat. She'll sneak up and bite my toes (HARD) and run away. Then the cheeky little girl will due it again! Gah, she's lucky I love her
Rat's aren't done growing to eightish months, but are still need less protien after 4-6.