To emphasize what was said above, there is no such thing as an Albino DWARF frog. A lot of pet stores will sell African Clawed frogs when they are really little as the dwarf ones. You can tell the difference best by their hands, the dwarf frogs aren't as "pointy" as the Clawed ones.
Here's a good site on that:
http://allaboutfrogs.org/info/species/clawedordwarf.html
I have a frog (should get the pictures of him up on here sometime) and they are a bit different to take care of.
Originally i fed him the small shrimp pellets and he did eat those, but i've since switched to a floating Turtle pellet that was recommended to me online. The floating ones are easier for him to catch (a leading cause of death from what i've read is eating gravel), easier to clean and feed him, and i think they are more nutritional balanced for amphibians and reptiles. I do have a disclaimer, my frog is approaching 4 years old, and he's quite large and so can swim around the top of the tank very well, smaller and younger frogs may not be able/willing to do this. Basically, anything smaller then a few inches, like smaller then a fancy GoldFish is going to be eaten by this thing.
If you truly have/want Dwarf frogs, i have alot less to mention, but everything that i've read as said they are totaly safe, and in more danger of being eaten by big fish then anything else.