No. Worms regulate their population to match the conditions within their environment. As soon as those conditions no longer support additional aquaponics worms,  they slow down or stop reproducing altogether. Some estimate that worms will triple their population within a year.

Does that mean there’s a worm graveyard growing beneath the surface of your media? No. Worms will actually consume the deceased carcass of other worms. And because worms create their own waste, they’re actually contributing to the nitrification process!