Made a mistake and posted this as a new thread, so apologize for double posting. Here's the question:Been receiving small shocks when hand is in tank and arm brushes against fairly new (5 months old) Aquactinics TX5 fixture. Fixture has 2 switches; one for bulb positions 2 and 4 and the other for positions 1,3,5. When only positions 2 and 4 are on, and 1,3,5 are off, no shocks are received Just hooked up new Shock Buster GFCI (from Marine Depot) and when the light switch for positions 1,3,5 is turned on the GFCI breaks the circuit. None of the other equipment on the circuit tripped the GFCI, only that one switch. Am I save in assuming there is a short in the light fixture? I'm pretty scared of electricity since I accidently stuck a pair of scissors into a wall plug while trimming wall paper and got knocked into next Tuesday and half way across the room. Thanks