Well I came across this and decided to post.
I am 21 years old, college student, working at a marina and living with the parents.
My parents own 3 rental houses and one of the tenants left a 25 gallon tank, so my parents cleaned it all up and had it set up as a community tank. It was a horror story. The normal first time fish owner problems. This was about 10 years ago and the tank was running for almost 7 years.
Let's just say after that experience they were not very interested in fish anymore.
Then I went out and bought a 40 gallon a few years ago and they just rolled their eyes and said "you better be taking care of that". Which I did. But the tank cracked....
My mom had a fit over that. Our living room was flooded with fish flopping around. My dad on the other hand rushed out and bought some 20 gallon rubbermaid bins to try to save the fish we could.
Now I own a 55 gallon long aquarium and my parents have grown to love it. My mom is always trying to get me to buy live plants for the tank. Which it has some. My dad always goes out and buys neon tetras, he is obsessed with them. Also, he snuck in 2 army soilders in my tank.
Then on my birthday I bought myself a ten gallon for my bedroom. Parents were not happy since I already had a 2 gallon tank in my room with a betta. But I told them I would divid the ten gallon. So now after a death I have my ten gallon with 1 betta and 3 corys. And my parents do not bother me.
Out of sight, out of mind.