Okay, the Albinos are a little bigger than pygmies so I'm playing with aqadvisor for you.
With 5 neons, Malcolm, and 5 albino cories, it says:
Recommended water change schedule: 37% per week.
Your aquarium stocking level is 114%
Same but 4 albinos:
Recommended water change schedule: 32% per week.
Your aquarium stocking level is 105%
So again, keep an eye on parameters, and you might want to go with four of the bottomfeeders