There is so much to do in Richmond, it may not be fish related but you can visit all sorts of historical sites. Check out the old part of the city in Shockhoe Bottom, visit the capitol of the confederacy, the shopping is great, museums abound, check out any shows that might be at the convention center or at the Richmond Coliseum, go spread some joy at Massey cancer center or at the childrens hospital...check out some of the street food on the campus of VCU it's wonderful.