Came home today, ate some food, fed the fish. Noticed when I dropped some food in the Monster Loach tank, not much water movement. Checked the filters, bare. The impeller motors were hot, and couldn't be restarted. I thought I was out over $50 for two AC70's. Turned out a circuit blew and the landlord reset it while I was gone. The lights were on, but the filters never restarted. I ran them under cold water for awhile, and they restarted. Just glad my monster loach collection is intact.