How to get rid of these red stuff?

[Coralgurl]

Get some sand sifting snails or a diamond goby. My goby won't eat the cyano, but does keep the sand clean of debris. I've got cyano on my rocks and I've been blowing it off and syphoning it out. I have also changed the flow in my tank and this seems to be helping. You may not be able to add more flow, but you can change it around to avoid "dead" spots.