There is no right or wrong way. If the system is very efficient at removing waste and you're willing to pay very close attention to nutrient levels and trace element depletion, there's no reason you can't get by on zero water changes. Most people (including me) would rather just change the water than get that deep into the chemistry.
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Current Tank Info: 75 gallon reef, two 175-watt MH, two vho actinic
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