My New aquarium Ukulele https://youtu.be/I3FCkU9sb84
My betta is now 3 years old and still full of spice jumping at my fingers when I go to feed him. My maintenance routine is nowhere near as vigorous as Booli's described above. I have 2.5 gallon tank with a heater but no filtration. I change 50-70 percent of the water once a week. I've gone as long as two weeks with no water change on multiple occasions. That did worry me a bit so after one of the two week lapses I took a sample of the water into the pet store to be tested and they said that the water tested just fine, the ammonia levels were still low. I feed him either tiny pellets and/or dried bloodworms once or twice a day. I feed them to him one at a time so I'm certain there is no waste drifting to the bottom. If that uke aquarium is a real deal it is going to be quite the pain to clean when algae starts growing on the inside.
You may have just started a new trend.....
Je vous donne des nouvelles de mon poisson et il se porte bien !
The water-filled one in the OP was very resonant! It must have been recorded with reverse SONAR.Back in the 1970s, Mason Williams had a classical guitar made from Plexiglas that he "finger-synced" to play on a show called "Just Friends". Apparently, it was an accurately made, playable instrument, but the top was so thick there was no resonation - he likened it to playing an electric guitar that wasn't plugged in.