Actually, I really wasn't giving them a "resting period". I just always thought it was silly to either not dose after a water change or just dose one, micro or macro.
The only reason I do it that way really, is so that at no point there is a "shortage" of nutrients.
On a side note, sometimes the day before a water change I dose a little extra for no other reason than "just in case". If they don't need it and I am adding too much, no biggy since I am doing a water change the following day. 80%.
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