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It is only on 1 rock. I just don't want it to look like a crime scene in my tank. I can be friends with it if it stays under control I suppose. The tank doesn't have to be pristine. May I borrow a teal crayon? I broke mine.I have crayons if you like.
I'll look for an article. But in short, it's been around for 4+ billion years and feeds on everything. Light, nutrints, co2, calcium and alkalinity(co2), particulates(rotting and becoming both a co2 source and n/p).
I find it best just to make friends with it.
So in a young tank you have new uncured rock that is now slowly dissolving releasing a carbon source (calcium) also the biofilter bacteria are not full up to speed yet so there's nutrints available to other organisms like alge and cyano.
In these cases many folks use a competing organisim to reduce the amount of cyano bacteria that grows by starving it a bit. Chato and a refugium are one. Corals are another. Agressive bacteria from a bottle are also good as long as they don't have a carbon source in the bottle like MB7 does. As the carbon source directly feeds all bacteria.
In some cases phosphates do bind to a Rick very heavily. I had a tank that was overcome With it. During the rehabilitation several rocks no matter how high the flow would grow big spots of cyano. But just in those spots.
So the unfortunate trick is figuring out what is fueling your particular cyano and systematcly reducing that element.
Do you vacuume your sand ? After the over feeding it may be holding both has an nutrints.
Or is just in spots. I.e. Bound to rock.