well, i found out my ph isn't exactly 6 out of the tap. it is at first, but my dad puts iron out in the softener, which is acidic i found out. The real ph is around 6.6 if left out for a few days. I'm sure I need to let the water sit out for water changes now, because if it isn't added there is too much iron in the water. This ph would still be good for an inert substrate though right?
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