YooHoo & Friends S02E48 - The Red Tide

Oops and Koops have polluted the ocean and because of them a red tide phenomenon occurs. Not being able to breathe in the poor conditions the ocean creatures retreat to the land using their fish tank car. Yoohoo and his friends begin searching for the animals responsible for creating the red tide phenomenon, and in the end find out it was Oops and Koops!