Yep - I bought the 7000$ generator as wellI do. Made a concerted effort a few years ago to avoid apex as single point of failure. Main pump is the only problem as there are good reasons for me to connect it through apex. Even though I have no automated backup, failure wouldn’t be immediately problematic. I have backup heat that runs off an independent ranco and a second ATO that runs off independent dual redundant floats. Half my vortech pumps run off apex, the other off ReefLink. Same with the lights. Mighty inconvenient if apex failed, but not likely lethal. I also have a standby genny on the house and an on call local reefer (I am also for him). If my tank were to fail it’d be self negligence/stupidity or major structural failure.