Answer:
I'm guessing because there is a more likely change that bacteria will infect the wound because of the bacteria in the water
The survival of the species is ensured by C. by protecting the fertilized eggs from predators. The protection provided by the male increases the hatch rate of the eggs, which means more young seahorses. The greater the number of hatchlings, the greater the likelihood that some will survive to adulthood and carry on the survival of the species.
He could race multiple cars with different weight added on them and do multiple races (just to be sure) and see if his theory was correct, if not he should right down what he has learned from his experience! :D
-You'll never learn if u don't try ;)