I think he's got guts for trying so much so soon. It's possible to breed fish when young. Besides, aren't you only 14 or so? (sorry if I'm wrong). Besides that, if he thinks he can handle it, then he should give it a shot, within reason. Disuss for when he's 16
But breeding is fine I think. If you have the capability to do it, why shouldn't you?
thanks

aaf is 15 and im 14
well yea the 13 thing was mainly for the discus. breedings ok as long as he can keep up with it, but he should get everything stable first. im actaully 15 and havent breed anything yet or rather tried to raise anything.
i know why ur not breeding anything

u have tons of pets, u have 2 reptile tanks, i think and like 5 fish tanks, which are species tanks/community also, if u got 1 big tank for show, and then u could use the other 4 for breeding, shrimps, angelfishes, and even one for breeding self cloning crays as u could keep them with the crabs.