Hi, I can't understand chemistry, so I have the following question: if I mix sodium carbonate (Na2CO3) or sodium bicarbonate (NaHCO3) with monopotassium phosphate (KH2PO4) and dissolve it in distilled water, won't any of the elements precipitate over time? Will it remain stable when dissolved in water? I will briefly explain why I am asking: I have a reef tank in which distilled water is automatically added instead of evaporated water, and every day I add sodium carbonate separately and monopotassium phosphate separately to replenish the carbonates and phosphate consumed by the aquarium inhabitants daily. I want to mix these two substances in distilled water (of course, taking into account the daily dosage) and thus fill the lack of elements in the aquarium at once and automatically.