I have a 10 gallon tank I'm cycling to try and keep neocaridina shrimp and I'm noticing my pH is super high (8.5-9.0). I am using inert black sand as my substrate, I have driftwood and alder cones in the tank, and a little bit of duckweed (which seems to ironically be dying off) and some java fern. I am also noticing that my ammonia, nitrite, and nitrate are also nearly undetectable, which I think might be from my plants and algae growth. I'm doing water changes using old tank water from some of my other tanks (South American Cichlid tanks) and I'm noticing that my pH is still really high in my 10 gallon tank, so I checked my other tanks and saw the pH was also really high in them (despite using American Cichlid salt). I finally ended up testing my tap water and found the pH to be in the 8.5-9.0 range. Is there something I can do to lower my pH? I've heard of people using vinegar, but that doesn't sound like a very good idea to me. I added in over a dozen alder cones and two pieces of driftwood, but my pH is still way too high. Is there a good product you guys recommend?
