This algae has been showing up in my tank recently. I run a 20 gallon tank, 48 watts of t5 lighting, injected co2 and fertilize with aquariumfertilizer.com's Macro Micro Nutrient Mix.
I also run a UV sterilizer 24/7 that I initially installed to combat green water.
This algae (bacteria?)...
You guys haven't failed me yet. Trying to figure out what kind of algae this is lurking in my shrimp tank! I'm not even too sure if it's algae - could it be a plant? (Notice the little green fuzzy circles in the center of the picture).