Im wondering, if you have multiple tanks. Tank A and tank B. and tank A has good water but you like to do weekly or biweekly water changes, would you be able to use the water from tank A to do a water change in tank B?
I make 5g of new water and do a wc on my nc28 weekly. Then I use that water to do a wc on my frag system (about 55g). Seems to be working great so far.
