“If red tide is in the area, it is going to make it worse and make it stay longer,” he said. How long does red tide last?

The red tide in Florida washed up many dead fish on the state's southwestern coast. This map shows where the red tide is now.

Red tide is caused by a harmful algae bloom. It can bring respiratory problems and even fish kills in high concentrations.

Medium to high concentrations of the organism that causes red tide have been found in more than 100 samples along Florida's Gulf Coast. Here's how it impacts humans, pets and marine life.

The phenomenon, called red tide, generally occurs in the fall, affecting the southern coasts of Texas and Florida. But this year, the red wave came early.

Red tide blooms occurred long before Lake Okeehochobee was connected to the Caloosahatchee River in order to drain the Everglades. However, nutrients flowing from the lake can feed blooms nearshore.

With spring break just days away, red tide has been reported in several Florida locations, bringing respiratory problems to some and fish kills to some beach hot spots. The worst water samples are ...

Red tides are a type of harmful algal bloom, and they occur worldwide. There are over 300 species of red tide, and within the United States, these blooms appear in three main coastal areas ...

A red tide bloom is covering 100 square miles of the Gulf. How long will it stick around? And how did it get here?

Is red tide harmful to humans? What exactly is red tide? What is the main cause of red tide? Is red tide in Florida now? We have your answers.

Is red tide harmful to humans? What exactly is red tide? What is the main cause of red tide? Is red tide in Florida now? We have your answers.

When certain types of ocean algae grow out of control, a toxic “red tide” can form. Find out what you need to know to enjoy the beach -- and seafood -- safely.