tried to remove some pics from the earlier listing (but it did not work) as was informed on iNaturalist that some of the pics were of Koi Carp so am relisting them again separately apologies for any inconvenience. The European Carp have been listed separately. Apologies "research grade" should not be in the name.
Carp Cyprinus carpio or Goldfish Carassius auratus - hard to tell at that angle but id probably be going for C. auratus based on the less defined dorsal spike and rays on the tail however the diagnostic feature is the barbels on the mouth.