"What" what? If you mean, what it will do to you: electrical shock, which is
never very pleasant. If you mean "what" to "bent back syndrome", stray
electrical current causes a muscle spasm so tight that it literally breaks
the fish's back, causing it to kink (bent back). Stronger jolts will just
outright kill them . . .

Lee
"LRobi31070" wrote in message
...
With any pond lighting, ensure that you're
plugging into GFCI outlets to minimize stray voltage. It WILL kill the
fish,
cause "bent back syndrome", and stunt plant growth. Not to mention what it
will do to you!



What?