Crossword clues for the word: REDTIDES The word REDTIDES has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for REDTIDES Showing 1 to 6 of 6 results Clue(s) Colorful blooms along the coast Colorful ocean phenomena caused by dinoflagellates Invasions of certain algae. Toxic ocean blooms Undesirable coastal phenomena Water conditions toxic to shellfish