Darren what brand led's are you running on main tank and what did you replace
sorry so many questions
Trivan, you are correct…a photon is a photon, regardless of where it came from. It is sort of like saying a volt is a volt, regardless of whether it came from a coal burning plant or hydroelectric plant. The problem is that photons are physics, and we are talking biology. In biology, intensity, wavelength and period are what is critical to the life forms (unless you have some Barry White on, where a low number of photons add to the atmosphere. )