Hello! I’m in northern Minnesota, and have recently set up a 55 gallon tank with 1 ocelaris clown, 3 pj cardinals, a tail spot blenny, and a nice clean up crew. So far my water quality has stayed steady with no spikes. Down the road I’m planning on adding bubble tips, a zoa garden, some mushrooms. The tank is in a bar/restaurant complex and offers lots of great teaching moments.