fuge growth ID

[Flynnstone]

i have some nice blue algae/sponge growth in my fuge and would like to get an positive ID on it.
thanks for your help.

http://i195.photobucket.com/albums/z128/FLYNNSTONE_photos/IMG_5352-1.jpg

[MizTanks]

Way cool! What kind of lighting are you using?

[Flynnstone]

27watt spiral compact flor. bulb in a clip-on shop light. ( 65k )