[Pavel Chaloupka]

I would not be concerned about this at all. If you want to transfer the milt during artificial fertilization as it is done with most of the Synodontis species for example, you do not even have the time to suck it in to the syringe and transfer it to the bowl with the eggs, you need to use deactivation solution with the milt or it it is already out of energy and not capable of fertilization when you mix it with the eggs. It takes few seconds at most. So the current would have to be enormous and the single sperm cell would have to be lucky enough to hit the egg directly, which is close to impossible as you would need the egg to be layed just in time to be capable of fertilisationa and not to be fertlized already by the right father who is in the cave with the female. And we could go on… 😀