Class
Common name: Blue-Green Algae
Scientific name: Cyanophyceae
Cyanophyceae, commonly known as blue-green algae or cyanobacteria, are a class of bacteria that obtain their energy through photosynthesis. They are notable for their rich green-blue pigment, which comes from the phycocyanin that they contain. In reef aquariums, they can be both beneficial and problematic. Some cyanobacteria can fix nitrogen, which can be useful in nutrient cycling. However, they can also form unsightly and potentially harmful blooms if nutrient levels are not properly managed. Maintaining good water quality and proper lighting can help keep their growth in check.