11-17-2013, 01:35 AM
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do loaches/sharks generate electric fields?
Does anyone know if loaches and/or sharks use electric fields to find food? Not ocean sharks, but red-tail, rainbow, and bala sharks. I'm not crazy! Some fish do generate electric fields. Many saltwater sharks and rays can detect electric impulses given outby living things. In freshwater, there are electric catfish and ,of course, electric eels. Most fish that use electricity use it to navigate murky water and to locate food, but some can actualy stun or kill with elevtric jolts. A good friend of mine had an electric catfish that lived in a tank full of very aggressive snakeheads. When threatened the catfish would stiffen his body and vibrate for a second. Suddenly the attacking snakehead would dart away looking very shocked. The only other time I have seen anything like that is when I feed brine shrimp into my community tank. The rainbow shark will stiffen, then drift unerringly to the nearest brine shrimp. I wonder if he is finding them with electric sense. If anyone knows anything about this, I would be very greatful to hear your thoughts. Thanks