ROTFLOL!!! (Rolling On The Floor Laughing Out Loud)
My wife just came in to see if I had lost it. At least she did not catch me with my head in a tank. I think that would call 911.
Bertie, you get the "Pragmatist of the Year!" award for the simplest test and resolution, but one I would not volunteer to do myself, so would not suggest it either. My son, now in his 40s, did have a waterproof periscope that we used to take to vacations with us. It came from Toys R Us, but well over a generation ago. I no longer keep up with such things.
PP - IF this thread ever ends, please move it to The Best of the Rest! This is too good to lose track of...
My Puffers: FW 55g: turgidus puff pair (soon to be empty for Olive and co!!) SW 29g: GSP Olive, Zelda the Valentini, a filefish, a blue damsel, green striped serpent star, and assorted hermits SW biocube 29: Roger, small Peacock Mantis Shrimp, Allens damsel, clownfish, trochus snails, and corals FW 10g: planted with 3 dps, 3 eel loaches, 2 kuhlis, amano shrimp FW 10g: planted with a male betta, Kermit the ADF, amanos, rabbit snails, and ramshorns