i had a jack and a green terror in a 40 tall for like 4 years and they just died out of the blue, i was like 10. I was so sad and when i got bback in the hobby i got another JD and an EBJD
i got tricked into buying a 30 gallon tank and 2 oscars... they lived in that thing until they broke it. had to make a makeshift concrete pond for them as i couldn't afford to buy a tank. I was 9, 20yrs of fishkeeping flew by so fast.