past two weeks i noticed some corals were declining & i wasn’t able to find out exactly why,
lost two fish and a cleaner shrimp and still i couldn’t figure out why
parameters were all good, no changes in lighting or anything else
nothing infected or had pests so i was really confused. especially since the remaining fish/shrimp were acting weird
put my hand in the water to move a rock and got zapped. endured that a bit more by unplugging things and testing again until i got to the return pump, only zapped me when it was plugged in, couldn’t find any signs of anything broken, loose connections or anything really. got a temporary pump from a local and ordered a new pump
it was a pretty cheap amazon pump that was less than 6 months old
lesson learned, sucks but i’m glad i found the cause before anything else happened