For the past two years, researchers with Mote Marine, the Florida Fish and Wildlife Conservation Commission and other organizations have been working to develop ways to fight red tide and on Friday, they may have witnessed the breakthrough they hoped for. It involves clay being sprayed into the water.

In a canal near Mote Marine, they deployed a technique called clay flocculation. This method has been used for decades in South Korea and China to fight algae blooms. The slurry of clay and seawater is sprayed in areas where red tide is present, like the canal where researchers focused their efforts Friday.

Testing is done every hour to see if red tide cell counts diminish. By sight test, it appears to be working. The clay project is one of more than 25 in the works.

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