Cyanobacteria harmful algal blooms (CyanoHABs) are an increasing ecologic and public health concern in waterbodies across the globe. Understanding and mitigating the risk of CyanoHABs relies on robust datasets. However, the complexity and uncertainty of CyanoHABs can lead to blind spots in monitoring plans. CyanoHABs monitoring program managers face many challenges including monitoring parameters, equipment calibration, sampling location, and monitoring frequency. This article published in Lakeline Magazine outlines common blind spots in CyanoHAB monitoring and recommendations for overcoming CyanoHAB monitoring challenges.