Usually pH jumps like that are caused from the CO2 leaving the water as it sits. That means that it should be left to sit out for 24 hours before changing the water, because the pH change hat occurs in your water could harm a fish. As far as I know there's no way to counteract it, but you can try to keep your water more acidic naturally with things like peat and indian almond leaf (IAL).
Questions/Advice on Source Water Parameters
Hello All,
I'm looking to start a new 40g aquarium as my first attempt at a real aquarium. Before I start even looking at fish species and beyond I want to make certain that I get off to a good start. My first order of business was to get the GH, KH, and PH of my water. I have a well with a water softener and the option of using RO.
Tap Water
50/50 Tap Water + RO Mix
While I'm mostly planning for a 40g tank, I have a Fluval Chi I am setting up for a betta tank. One thing I noticed with the Chi is that after I filled it with a 50/50 mix the PH increased significantly after sitting overnight. It went from roughly 7.4 to 8.0. At first I thought it might be the aquarium sand and replaced with a gravel just to be sure. Now I'm convinced it had nothing to do with the substrate as I tested it in pitchers overnight. What would cause this and is there anyway to counteract it?
I'm looking to start a new 40g aquarium as my first attempt at a real aquarium. Before I start even looking at fish species and beyond I want to make certain that I get off to a good start. My first order of business was to get the GH, KH, and PH of my water. I have a well with a water softener and the option of using RO.
Tap Water
- GH=71.44
- KH=267.9
- PH=8.4
50/50 Tap Water + RO Mix
- GH=17.9
- KH=143.2
- PH=7.4
While I'm mostly planning for a 40g tank, I have a Fluval Chi I am setting up for a betta tank. One thing I noticed with the Chi is that after I filled it with a 50/50 mix the PH increased significantly after sitting overnight. It went from roughly 7.4 to 8.0. At first I thought it might be the aquarium sand and replaced with a gravel just to be sure. Now I'm convinced it had nothing to do with the substrate as I tested it in pitchers overnight. What would cause this and is there anyway to counteract it?
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