We live near a large aquarium/fish shop, which we pass in the car everyday. A couple of years ago my kids decided that we REALLY NEEDED some fish as pets. I finally agreed to this as I already had all the equipment stored in the garage. I had owned fish when I was in highschool, and had bought the tank, light, filter etc. way back then. So a whole school of goldfish were purchased (one for each member of the family plus a couple of extras). Turns out that the interest in fish lasted a couple of weeks, and I was left with a large tank to clean, filter to maintain etc. One by one the fish eventually died and we were left with little tetras lost in such a large enclosure. (I inherited the tetras from someone else who was getting rid of their fish).
Solution - I went to IKEA and bought a large vase to house these little fish. EASY! No filters, no tank cleaning. I have just introduced some water snails to clean up any algae. It all looks quite cute sitting on a desk in the back room.
Anyone want a 80litre tank with all the trimmings?