So I was filling my water up for a water change and my TDS meter is reading 1 PPM, I remember when I first filled my water up it was reading 0 PPM and sometimes 1 PPM, So could it be my RODI, I don't really think that the 1 PPM would be making that much of a difference.
No, I change mine around 2 TDS.
It’s just normal part of having a newer tank to get that brown stuff
