A couple of 9 day stints. Just an ATO and an auto-feeder running. I have some fish that don’t love pellets and flakes, which I normally don’t feed, so I do a bit of a routine to ge them used to those a few days in advance. I run filter cups, so had underfilled those purposely and dialled my skimmer way back, mainly just for the oxygenation. The tank glass needed a good cleaning but everything looked great, particularly my corals. We’re about to go away again. Next time I’ll also have the benefit of the whole-home generator that’s being installed in July.What's the longest amount of time you've been away from your Reef Tank?