In article ,
Marco Schwarz wrote:
Hi..

The phosphate is from the well water I get. I've tried
every product out there to get rid of it.
Nothing works so I've learned to
live with it. I'll try the 'big cleaning' route and crank
up the CO2 and light and see
where we go from there.

Cyanobacteria are mostly no good at tolerating changes in
lightening and water conditions.

I've seen it several times: filter mud inputs were able to
stop them.

My favourite way to stop and remove them are daily tap water
changes of 85% netto over a period of 7 days minimum.

Yup. But as Tom says, this just cures the sympton not the cause.

But yes it does work. For a neglected tank I change 80% per day
for two days then 50% a day for 5 days and it looks like new.

If I actually get off my lazy butt and fertilize, the alage neevr
comes back.


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