Back before there were specially made diets for them we did feed them high quality cat food. Now that hedgehog diets are manufactured that is what I recommend you feed.
An adult hedgehog should get 1-2 TEASPOONS of hedgehog diet a day. You should also give about 1 Tsp. of veggies a day. Insects can be given as treats and are really good if you can hide them in the substrate so the hog has to go searching for them. You can give crickets, Dubia roaches, mealworms, and earthworms just don’t over feed these items. Hedgehogs put on weight very easily so it is important to monitor how much they are getting because they will become obese.
Another tip I give owners is that they can place a small amount of cat toothpaste on a bit of hedgehog kibble and give it daily to help keep their teeth a little healthier as they are predisposed to dental disease.
Because most birds have dark nails it can be difficult to know how far to cut. Birds that are very nervous or stressed will raise their blood pressure and can bleed even if you just barely take anything off. My advice is to just take the very tips off and generally you will be ok. If the nails are super long and causing the bird problems you just have to cut them and use qwikstop unfortunately. I tend to like to use the dremel because it is super fast and grinds them down smoothly, if you do get a bleeder you can just touch the dremel tip to it for a second and it will cauterize it and stop the bleeding.
Providing birds with natural perches in various sizes and lots of toys can help keep nails shorter as will frequent trimming.