Thank you. To be honest, I haven't a clue on the species. I do know that a number of them are hybrids. I purchased the entire setup, including the fish, from an elderly gentleman who was quitting the hobby. Would you believe it only cost me $500 for the 125, Filstar XP3, heaters, glass lids, lights, stand, decorations and fish? I wasn't thrilled about his lights on that tank, so I bought my own and am using his on two other tanks. And I've swapped out his decorations for landscaping rocks from my back yard.