Is this possible?

[tony_3a]

Hey I was just curious if switching type of lighting can grow different types of algae in your tank?

Ill tell you why I ask this....

I recently switched from 2x175 mh and 2 actinic bulbs to my 6 bulb tek light, and now instead of the normal greenish algae that I can scrub off if i get to it quickly enough with the brush, I have this weird light brown algae growing on the glass that my magnet cleaner will not take off. Its even harder to get off than coralline algae?

Thanks for the input
Tony