Still recovering from it. But I ended up zapping my entire tank. My sump tank return pump popped the tubing and nice conductive water decided that the electrical socket nearby was its destination. After myself getting nicely electrocuted unplugging the power, also so did all my fish and coral. Within a day most of the fish died and the coral did not last much longer. I have now a dead tank. But I plan to rebuild and better. I did find a nice aquarium grounding cable at Liquid Kingdom that is now on my shopping list. But started making a new tank stand. Then I will redo my overflow and fix the darn return pump issue so it will not happen again. At least I learned. Expensive lesson, but I learned.