So utterly choked... Really hope my bicolor will make it. Looking for any suggestions

[Seafan]

Sorry, It really sucks to lose a fish. It does sound like you did all you could do for your tank. Pat yourself on the back though for what you did do, could have been a much bigger loss, sounds like you reacted quickly and saved the rest. Not that you feel like celebrating at all, but happy early birthday wishes.

[searescue]

Stray voltage can effect the fish by playing havic with the lateral line , thats how fish pick up danger,
old equipment has a history of voltage leaching, that why i always run a grounding plug that takes care of any stary voltage, can be found at any reef shop,
cheers