"Because cyanobacteria are like legumes in that they have the ability to fix nitrogen, they can get growing as long as their is enough P in the water. That P stands for phosphorus, not the kind that your kids do in the pool, or in the river. The floating dead algae from a toxic algae bloom that can cause fish kills."
Feel free to be the first
Please review the linked page for context.
If you can think of something better than this,
please add it to the database