Red Algae

[jfenton954]

Does the algae on the screen turn red towards the of the 3 month bulb life?http://tapatalk.com/mu/62cc3854-a8d9-aeaa.jpg

[SantaMonica]

Older weaker bulbs have a harder time growing green, so it's possible.

But the growth in that pic is letting go from the screen, so it needs cleaning.