I don't know if anyone has had this experience but It seems i can make Cyanobacteria come and go on will. It seems it is a relationship with phosphates and nitrates. My nitrates are around 3-4 ppm and pretty stable for the last few months. When my phosphates read around .03-.04 no Cyano. Change out my GFO and drive down phosphates to .01 and boom Cyano. I have done this at least 4 times and same outcome. Anyone else seen this relationship?
I think I figured out Cyanobacteria(well in my tank)
- Thread starter cumbeje
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Potatohead
Valuable Member
Yes
Do you have any hair algae? Whenever I change my gfo, hair algae dies off. I was unsure if it is the lowering of the phosphate that is feeding the cyano, or if the dying HA feeds it, but I definitely notice it gets worse when I change gfo.
Do you have any hair algae? Whenever I change my gfo, hair algae dies off. I was unsure if it is the lowering of the phosphate that is feeding the cyano, or if the dying HA feeds it, but I definitely notice it gets worse when I change gfo.
Potatohead
Valuable Member
I have been letting my gfo reactor slowly clog over the past few weeks and haven't replenished gfo in order to test this theory, but I do think there is something to it.
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