I have a plant in it's second week of growth in a top drip 1 1/2 gallon bubblebucket I made from the biggest plastic coffee container I could find.(cfl grow. nuts LiquidEarth vigor, grow, bloom) Got the idea from YOUTUBE. I don't remeber what the title of it was. Because the nutrient solution is being recirculated constantly, what is the best carb supliment for me to use? I bought Strapped from Botanicare, but now I'm thinking about returning it cause I read that you shouldn't use this particular brand for my set up because it's recirculating. Any advice that could steer me in the right direction would be greatly appreciated.