09-11-2012, 02:02 PM
| || | Please tell me what this means for water hardness?
I had horrible problems with my past aquarium a little over a year ago with cycling. Turns out it was the black gravel from Petco, which was leeching into the water and making the pH go to 6.0, hindering the cycle. I just started up again: with natural gravel this time :) My city's tap water has ammonia in it (chloramine treated) and it's a pretty significant amount. The pH is very alkaline, maybe even higher than 7.4. The hardness? I'm not sure as I don't have a test kit for that and no online access to the water company to find it out.
So my question is: what does it mean if I adjust the tank's the pH to 6.8 (with API pH Down) and the next day it is back to 7.4? What does this indicate about our water? (hard or soft). I know it's not recommended to use these drops but I just wanted to start the pH around 6.8 (it's always been my "safe zone" as far as pH went for some reason). I plan to keep community freshwater fish, mostly barbs and tetras. I've had fish in bowls for over a year and their pH tends to get acidic after a few days, like to 6.6. I only have glass marbles in there. So I thought our tap water tends to naturally go to more acidic after a while, but is that only if the fish are in there? (I'm wondering if fish waste contributes to the water turning more acidic) and maybe that's why my empty tank isn't skewing more toward acidic yet. thanks in advance!
Last edited by whitecloud7; 09-11-2012 at 02:12 PM..