I'm actually on city water, but the water here is very hard. i've never tested the hardness, but there's white scale on the tops of all my tanks. i have gravel in there now with an undergravel filter. how would u recommend taking that out PP? as for mixing marine salt, for now i'm using oceanic, and i'm not entirely sure how that affects the hardness. I can get aragonite, i'm just afraid of killing my bio filter by taking out all my gravel. so there isn't anything you know of i can add to the water to raise the hardness? maybe calcium? as for the new piping, its actually all c-pvc though i'm not sure about the valves and such.
Facts are meaningless. You could use facts to prove anything that’s even remotely true!