Decided to feed them. One human owner was terrible and fed his humans potato chips and cheeseburgers (just like Tetra brand food). But there was one fish who actually cared for his humans. He fed them quality fruits, meat, and vegetables. (Just like Omega One and NLS)
Made giant nets. The humans then used the nets to catch all the fish. The story essentially goes along the lines of “Planet of the Apes”. The end, new story.