69 here. My 7 gal. reef tank runs itself and just do 3 cups a day WC. Check parameters every two weeks. Make 2 gallons of water once a week and keep my 3 dosing heads topped off and make sure my ATO is kept full. I do have two FW shrimps tanks, a Fancy goldfish tank, a planted FW tank, and a 1000 gal. above ground pond on my enclosed patio so all this and a BAD back keeping me going. lol