Fish tank brain teaser

Today in my maths group we done a brainteasr called Fish tank and we had to figure out how many black fish and gold there was sixty-three fish and my answer was twenty-one black fish and forty-two gold fish beacause it said there are some black fish and heaps of gold fish and i took away three and did forty plus twenty and that equals sixty then i took the forty and the twenty then since it said there are some black so i put one into twenty for the black and put two in the forty.

Tell me your answer