Lotsa Green Film Algae. From New Lights?

[OCDP]

Yeah I think I am confusing myself now. I can't even describe what I am talking about really. Inside the bulb is like a metal strip, and when the way the bulb is in my pendant, the metal strip is facing down towards the water surface, I thought it should be facing up towards the reflector so it reflects better? I am probably way out to lunch here.