about 18 or 19 years ago my parents got me a betta as my first pet. I now use his 20 oz. hex cup to thaw frozen food lol
About 5 years after that, I probably 3-5 gallon crayon tank with 7 comets
Then another couple years, a 10 gallon with a betta, an oranda, a puffer and a mudpuppy....that was a DISASTER lol