SHould i transplant my plants to somthing bigger. My plants range from 9- 11 inches tall. Im starting to see roots growing. The keep growing higher up on the stem . And im starting to see some on the top. But watering im only having to water every 2-3 days. The pots there in now are about 7 inches tall regular brown pots from home depot. My plants are in a box 2 x 2 x4. Im using cfls so the plants length including pot cant be taller then probably 3 - 3.5 feet tall. How big of a pot should i get if i have 4 plants in there?