ChemiClean will kill the cyano, but it will come back. I'm glad you mentioned it. In TK's case, since its a new tank, it may be a good short term solution. The best solution for long term cyano control is adequate circulation, detritus removal (siphoning or detritivores), cyano grazers (hermits and nerith) and nutrient control.

In TK's tank we may simply be seeing a situation where the tank hasn't matured yet and is suffering some residual problems from when it was set up in a different configuration. Cyano is very common in a new tank.