After finding no detectable amounts of melamine in farmed fish, the U.S. Food and Drug Administration on Thursday said it is safe to be eaten. FDA earlier suspected that the fish might be contaminated with imported Chinese ingredients and kept the fish off the market until the tests could be completed.

Giving a clear chit to the fish, Dr. David Acheson, assistant commissioner for food protection, said test performed on fish being raised at Kona Blue in Hawaii and American Gold Seafoods in Washington state were found negative for the chemical melamine.

The suspected was feed also sold to 196 fish hatcheries but FDA now says that since those fish are small and the feed has been recalled, there no longer is any public health concern from them.

AP reports that melamine contamination has been blamed for the deaths of an unknown number of dogs and cats. This also lead to the recall of dozens of pet food brands.

Since the detection of the problem, nearly 46 shipments of protein concentrate from China have been detained and are being held until it is proved that they are free of melamine. The fish imported from China are also being tested for melamine.