I've had just as many Maxi Jets fail as Rios. They just stay sealed and don't burn like a Rio. No toxins in a Rio that affect fish or inverts as even the sea urchin and all the other critters and pods, mysis and remaining fish are doing just fine with no water changes, no skimmer and no carbon. If there could have been toxins inside, must have precipitated. And there is no need for lubricants, there are no moving parts inside. The proximity to the pump when the current goes through the water makes a difference. The shock is harsher near the source in salt water and gets diluted out the farther it has to travel. At the far end of the tank, things were fine, near end was death. The male six line jumped out as it turns out. He's been in there for years but he made quite a leap that day. His mate emerged a couple days later unharmed.

What do ya'll think about GFCI's after an UPS? This might solve the GFCI turning the pumps off during an electric storm?