^There is, they're different species. Albino cories are Corydoras aeneus, so just albino versions of bronze cories. Peppereds are C. paleatus, but as far as care requirements go, they are the same.
If you can't find pygmies, you should take a look and see if the store carries Panda cories. They stay around 1.5" inch where as the guys above will get 2-2.5".
If you can't find pygmies, you should take a look and see if the store carries Panda cories. They stay around 1.5" inch where as the guys above will get 2-2.5".