Killi
   
curve
Algae in the aquarium


blue_green
Cyanobacteria

The typical ‘cyan’ colour originates from a mix of chlorophyll A & phycocyanobilin.



green__water
Why is my tank greeen?

When people say their aquarium water is "grey" because they have a bacterial bloom, it always surprises them to look at the water under a scope and see this. No, that's not bacteria, that's the precursor to green water.



"Rather than nutrient concentrations controlling macrophyte abundance, it seems that macrophytes acted to modify nutrient concentrations." Bachman, 2002.









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