I see it's been 21 months since I last updated this blog. The reason is that I still have a cyanobacteria problem. I was expecting the tank to transition to a healthy cyano free state at which point I would post the data I have been collecting relating the abundance of cyanobacteria to levels of phosphate, nitrate and pH. I wanted to make the point that cyanobacteria problems can disapear spontaneously with no input from the fishkeeper. But after 21 months there seems little point waiting longer. I wouldn't want to advise someone with a cyano problem to wait two years and see if it goes away.
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| W302. The Cyanobacteria is not as bad as it has been but, let's be honest, it's not great. |
So here I am, cleaning my aquarium every week because it looks diseased and smells if I don't, while wondering what the point of cleaning my aquarium every week is. And all this happening while my
unheated tank in the front room is cyano free. I replaced my unheated tank with a bigger one around 21 months ago (coincidently) and have never had any cyano problems with it. It seems to me that I should compare the two aquaria to see if anything can be learned about the causes of cyanobacteria problems.
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| My new unheated aquarium 5 months after start up and cyanobacteria free |
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