11-16-2011, 12:32 PM
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I tested my water last night- tank empty, and the pH was 7.6, which is higher than it ever was in my past tank, same city. Does a sand substrate and/or flourite increase the ph a bit?
A calcareous substrate would raise hardness and corresponding pH. What is the type of sand? As for Flourite, initially it might but minimally; I think I had a rise in pH of about .3 or .4 but it didn't last more than a few days, but then I have near-zero hardness in my tap water so pH drops quickly in a biologically active tank. What is the tap water pH, after it has sat overnight?
I plan on doing a water change today. Will buy plants tomorrow and a new fixture. And might go for a hike to look for driftwood and river rocks to get going and added to the mix. I wish I had saved all the decor I had before- think we dumped it all with the move! :( |
I know to boil driftwood, soak rocks, but will refresh my memory with a google search.
One can use "wild" wood and rock, though there is always a risk. I have used rock from landscape places; if you know the type of rock (calcareous issue again) and wash it in hot water with a good scrub brush... . Rock can absorb liquids, and these can take years to leech out. But wood is always even riskier. I would only ever consider wood from
a watercourse (will be waterlogged, and likely have dissipated any toxins over time). A good boil should handle possible parasites.