For less than $20 you can add in 1 more of those 2 bulb 4' flouros.... You could probably find them cheaper if you went searching around town, or maybe in your garage or attic...I have a couple laying around in my garage. But at HD like $8 for the fixture, and $8 for the bulbs. Get as many as you can and surround the plants in light. they are not especially bright. Or you can use those as side lighting and get a couple CFLs (about the same cost) for top lighting.


I am sure you could get 2-3 plants with those 2 lights. But don't expect a lot of bud.

About the Miracle Grow.....make sure you check the pH of the water....and (IMO) do not use it full strength. And don't use it every watering....like every 2nd or 3rd. your plants will tell you when it is needed.