Cyano bacteria!!

[stickman87]

http://cloud.tapatalk.com/s/581144f1193cf/20161019_125221.jpg?

 

[stickman87]

It made me upload them a weird way I hope you can see them

 

[Hans-Werner]

Cyanobacteria most frequently make problems when phosphates are low in the water and high in the substrates (sand and rocks). So don´t wonder if the phosphate concentrations you acutally measure after you got your test kit are low, they indeed may be.
It is a common misbelieve that algae or cyanobacteria need a lot of phosphates to grow in saltwater. The opposite is the case, they usually are supported by high nitrogen and high nitrate. Hard corals need even higher phosphate concentrations than the algae for growing. So it is impossible to fight algae with low phosphate concentrations in a reef tank, they can only be fought with low concentrations of N-compounds (nitrate, ammonia, amino acids etc.).

 

[saltyfilmfolks]

Cyanobacteria most frequently make problems when phosphates are low in the water and high in the substrates (sand and rocks). So don´t wonder if the phosphate concentrations you acutally measure after you got your test kit are low, they indeed may be.
It is a common misbelieve that algae or cyanobacteria need a lot of phosphates to grow in saltwater. The opposite is the case, they usually are supported by high nitrogen and high nitrate. Hard corals need even higher phosphate concentrations than the algae for growing. So it is impossible to fight algae with low phosphate concentrations in a reef tank, they can only be fought with low concentrations of N-compounds (nitrate, ammonia, amino acids etc.).

Can you point me to that research please.
When I went therroug my big cyano war.
Cyano appeaed on several specific rocks.
When I tested the Po on the the individual rocks it was quite high.

 

[Hans-Werner]

I did own experiments and own research. Besides this already Sorokin found out with tracer experiments and published in his book "Coral Reef Ecology" that corals are phosphate limited. There is newer research confirming the findings of Sorokin like this and this article.
Especially Oscillatoria (the red slimy cyanobacteria) grow best with low phosphate concentrations in the water. It is because they can mobilize phosphates from rock and gravels and maybe because the competition from corals for nitrogen and other nutrients is decreased due to phosphate limitation of corals.

 

[saltyfilmfolks]

I did own experiments and own research. Besides this already Sorokin found out with tracer experiments and published in his book "Coral Reef Ecology" that corals are phosphate limited. There is newer research confirming the findings of Sorokin like this and this article.
Especially Oscillatoria (the red slimy cyanobacteria) grow best with low phosphate concentrations in the water. It is because they can mobilize phosphates from rock and gravels and maybe because the competition from corals for nitrogen and other nutrients is decreased due to phosphate limitation of corals.

Thank you for that. I agree. I believe its just the method of how the bacteria access Po (from rock rather than from the water column) we actually seem to agree on. That was also my understanding from research and confirmed by my experience.
I would like to see more on the No uptake of the cyano.