Join Date: Mar 2016
Location: Philadelphia, PA, USA
Why is my pH rising?
What could be causing my pH to suddenly rise? It used to be reliably at 7.5. I admit that I had gotten relaxed about the pH and wasn't testing it as regularly as the other parameters (lesson learned). After a couple of weeks since the last test, I tested it last Friday and found it at 8.3. I did a 40% water change right away, and here's how it has progressed:
Fri evening 8.3 - 40% water change right away
Sat morning 7.5
Sun morning 7.5
Monday evening 8.2
I tested my tap water to see if that's where the change was, but it was at 7.5 as usual. I'm using the API Master Kit and repeated the pH test.
I've had this aquarium since late February, and its parameters have been fairly stable. I made three changes in the last couple of weeks: replaced T8 fixture with Finnex Stingray, added a Top Fin artificial wood decoration, and started using API Leaf Zone per directions (but haven't used it since last Friday's water change).
The aquarium's specs are in my signature line.
The other water parameters are:
I've been dealing with algae, but just by cleaning it out manually during water changes and working with the duration of light.
I'm wondering if the artificial wood decoration is causing the pH to rise, although I thought artificial decorations wouldn't affect the water quality. I'm not sure what else could be raising my pH so fast. I'd appreciate any ideas you have. Thanks!
Aquarium #1 - 10 gallon | one male betta | anubias, java fern, crypt | standard gravel | full-spectrum T8 | sponge filter | 50W heater at 77°
Aquarium #2 - 5.5 gallon | one male betta | anubias, java fern | standard gravel | full-spectrum T8 | sponge filter | 25W heater at 77°
Last edited by VinceIII; 07-12-2016 at 02:07 AM.