My oldest son has shown no interest, but my middle one has been asking for his own tank. While he was away at his cousins house we redecorated his room and found the perfect spot for a 20 gallon long. So we set that up and he picked out a pair of frostbite clowns and a blue chromis. Of course I had enough stuff laying around to get this set up, so it’s a cheap lesson in responsibility that hopefully will give him as much pleasure as it does me.