Anyone who was in Southwest Florida during 2018 will remember the two massive, simultaneous harmful algal blooms that devastated marine animal populations, and hurt local economies. The blue-green algae — or cyanobacteria — bloom that originated in Lake Okeechobee, choking the Caloosahatchee River, the canals that line it, and its estuary met the offshore red tide bloom which was lining beaches with dead fish, dolphins, and other marine life. While the blooms fouled the waters, and kept tourists away, there is growing evidence the toxins they produced can be harmful to humans.