Firstly, would there be any negative effects to my fish if I were to place a submersible clock into my tank? If the answer is no, has anyone done this? Battery Powered or wind up? And does anyone know of a manufacturer? Thank you very much.
I can completely understand the urge to put strange things in a tank. I just bought a 3 inch small remote control submarine. It was actually designed for aquarium use. The idea is that you can buzz it around your tank, chasing your fish. It has a bright blue headlamp that shows up quite brightly in the dark. My fish (white clouds, platy, amano shrimp) immediately hid when I put the sub in. I didn't actually chase them with it of course. That would be mean, as opposed to just immature. :
perhaps he wants to know what time it is when he's staring in to his tank.. or wants to create a unique kind of clock.. "hey whats the time??" "OH just let me check my fish tank..." :joke: