Orange and black fishes thronging the water of the sarovar of the Golden Temple in Amritsar

In a previous photo, I had shown some of the fishes inside the sarovar of the Golden Temple. In this photo, you can see a larger quantity of such fishes, and I am not able to confirm which species of fishes these are (although one site mentioned that these were carp). They do look attractive to the devotees who visit the place.