Just wondering on what size can we do this on an E. Eel? I still got a 6-7incher I believe this little dude can't emit that much frequency yet to be heard over the speakers.
I would doubt that. Don't let his size deceive you, I'm sure even small EE's can produce pretty impressive shocks. It should be able to be heard and especially when he emits the shock that is meant for stunning prey.
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