I had a tropical blueberry harvest, a small one, but this is unique I think, so I am sharing the experience. The berries come from Sphyrospermum buxifolium which is a beautiful vine with little hairy blueberries. The berries are lightly sweet with a quality that refreshes you, not minty though.
I include a shot of the tank and you can see lots of the vines criss-crossing the tank, and a picture of the harvest, only 20 something berries. There are however twice as many berries currently maturing.