When I upgraded pond sizes i put half of my fish in at a time in a two day period (koi and goldfish). once they were seperated they seemed to be less active and sulked around the pond and once they were reunited they wen't back to their usaul behavior which seems to be the same behavior as spawning behavior. So does anyone else have a situation were fish will miss each other when seperated. They seem to behave more like a group of dogs than fish in my opinion.
