Sorry to not of asked this earlier but the things that are doing bad sps and chalices. Are the on the same side of tank, far apart, together, high low in tank, is the cyano close to the chalices or far away. Is it possible that any of these things got light shock meaning were they moved to a different spot. I moved an acan once and it was never happy for weeks till i moved it back about 12 inches away. I believe it liked the flow of the area it was in.