Hey, the last 2 rocks I tried in my tank, raised the PH even though they weren't supposed to, supposedly!! I like to keep my tanks at 6.8 or so…
I'm in Northern California near San Francisco, live in Marin County. Anyone know of any rocks that won't raise the PH in my tank that I can buy locally at a rock place or even find? There's an ADA Store in San Francisco but those rocks are freaking Expensive Big time.,.. I'd love to be able to go to the local rock place that sells rocks to landscapers, etc. and buy them there because they are super cheap there and it would be a lot more fun… Thanks!