alkalinity and cyano

[jmack]

Is there any relationship between alk levels and cyano? Just wondering cause my alk appears to be low and ca high and I can't get rid of a patch of cyano in my tank.

[xtrstangx]

I used to add baking soda (to increase alk) and my cyano would disappear for a while.

Try raising your alkalinity and see if that helps:
http://home.comcast.net/~jdieck1/chem_calc3.html