Friday marks the two year anniversary of the BP oil spill
Research into that disaster shows a large number of fish near the site of the explosion are sick.
It doesn't pose a threat to humans but could mean fish like the Red Snapper and the Grouper could be very limited in the future.
On April 20th 2010 the blowout preventer on the Deepwater Horizon failed.
The explosion killed 11 workers and started the biggest oil disaster in US history.