Red Cyano Bacteria

[TANGOMAN]

I've fought long and hard with this nuisance algae as well. I've just recently taken control. I believe the addition of a skimmer to the system was the greatest benefit but I've also began to use "Phosguard", by SeaChem. I "slow-flow" all make-up and replacement water through a homemade "cylinder" in addition to GAC cartridges. (the poor mans RO/DI). I haven't tested for phosphates or silicates but with no cyano. visible, I believe it's working.