That red snapper you picked up at the grocery store may not be red snapper at all.

A new study found a third of the seafood we buy is mislabeled.

That's according to the environmental advocacy group, Oceana.

The group collected more than 12-hundred seafood samples from grocery stores, restaurants and sushi venues in 21 states.

They conducted D-N-A testing between 2010 and 2012.

According to the study, the most commonly mislabeled fish was snapper.

It mostly turned out to be rockfish or tilapia.

Tuna had the next highest mislabeled rate...followed by: cod, salmon, yellowtail, halibut and grouper.

According to the L-A Times, Oceana advises customers to ask questions about the seafood they purchase.

And-if the price is too good to be true, it probably is.