Keetchy
Member
So I managed to score 3 big pieces of rock for nada. Plan is to break them down into smaller pieces and use with the Seiryu stone I have for an Iwagumi tank.
Question is.....is the rock safe to use? I chipped away at the rock and poured vinegar on it which then started to slightly fizz. I know this alters the hardness and PH of the water. But is it still ok to use as long as the PH settles and stabilises?
Question is.....is the rock safe to use? I chipped away at the rock and poured vinegar on it which then started to slightly fizz. I know this alters the hardness and PH of the water. But is it still ok to use as long as the PH settles and stabilises?