Over the years, I've had countless aquariums and upwards of probably 500 fish. I have only raised freshwater fish. I've bred guppies, and raised: guppies, bettas, tiger barbs, neons, angel fish, cardinal tetra, kuhli loaches, clown loaches, albino catfish, upside down catfish, bronze catfish, cherry barbs, gold fish, dwarf gouramis, black sharks, plecostimuses, red finned sharks, red tailed sharks, zebra danios, algae eaters, and probably more, I just can't remember them all :)