It happens every so often. Someone discovers just how easily seahorses breed, but can’t raise the babies, or discover the expense and time it takes to raise seahorses and so they decide they can sell the seahorse fry and make some money doing it. Unfortunately, it’s a mistake and it ends badly for everyone but the seller. To understand why selling seahorse fry is wrong, we need to look at what causes this situation. Seahorses breed extremely easily.