Florida Red Tide Report 2025 Schedule. Red tides, which scientists refer to as harmful algae blooms, occur when aquatic microorganisms grow out of control, producing toxins that can kill fish, make shellfish unsafe to. Fwc scientists combine field sampling with tools maintained by state and federal partners to track red tides and their effects.
For more information on algal blooms and water. Please check our daily sampling map, which can be accessed via the online.