Here are more details:
I will be adding a wicking string to it and also adding in a PVC pipe for water filling. The reservoir capacity (holes for aeration and air-gap is 1.5 inches) is between 3-4 gallons, so it should cut down on the amount of watering I need to do.
I will fill with potting MIX that needs some fertilizer added to it. I did a lot of looking at different brands and have decided that I will mix either Garden Tone (3-4-4) or Jobe's Organic Tomato Fertilizer (2-5-3). Here is a snippet comparing the choices. For watering, I will use WATER SOLUBLE Miracle Gro Performance Organics Edibles (the black box with strawberries, tomatoes, and greens on it and percentage 9-4-12).
I'll update as the season goes on.