Cover your jars in dark black to prevent any light from getting in or algae will grow.

Algae Growth

Types of Equipment

Mason Jars: Get 64oz jars so you don't have to re-fill the water halfway through a crop of lettuce.
Rapid Rooter: Rapid Rooter Replacement Plugs
Plant Food: ?

Mediums

AeroGarden Liquid Plant Food: How much goes in a half gallon for lettuce? basil?