@tinker if you use the right fish you can farm them or use them for caviar if that's your thing. depending on how much space you have. also, the fogponics setups work great for mushrooms if you put them in non-nutrient pumped-up water.
@tinker it's super cool looking as well, you use waterproof ultrasonic fog makers in the nutrient-rich water. I've also seen some live hydroponic setups with live fish in them to provide nutrients(super tricky to regulate) with a fog ponics layer on top for root balls.