Crimson-Shaded Seawater Caused by Algae Bloom

This page is the CodyCross answer for the clue below from Toys, Group 1830, Puzzle 4 (Rubber Ducky).

Question is: Crimson-Shaded Seawater Caused by Algae Bloom

and the answer is: REDTIDE

Word Meaning:

RED TIDE — An algal bloom of sufficient quantity to cause discoloration (often red) in a body of water; red tides can potentially cause irritation or death to exposed creatures.

Definitions from Wiktionary.