it could be possible but when i switched from a CFL 13 watt *only uses, not sure what it replaces* to a 45 watt replaces 150 watt CFL thats when it started. so i switched back and im going to see what its gonna do. if its gonna continue to do the same thing then its the soil. if it gets better then it was the light. ** Note The soil is roughly 6months old. and had something grew in it at one point but it never survived due to the cold weather of winter.