I have purchased 2 pieces of Malaysian
driftwood at Aquarium Adventure about 3 - 4 weeks ago. It is specifically for freshwater aquaria (or so says the label). The label also says to boil the driftwood for 15 minutes as this will get rid of tannins and the driftwood won't affect the
pH.
I have been soaking this driftwood 24/7 for these past 3 - 4 weeks. I boiled it 3 times already, 60 minutes each time. Yet, when I leave this driftwood in a container with water overnight, the water will have a pH of 5.0 the next day (the lowest value on my pH color chart)! My tap pH is 6.9 - 6.8, which tells me the driftwood is still affecting the pH. Any idea how much longer I should soak and boil it? Or is it safe like this right now?
I don't want my water to be stained yellow, and I do NOT want my pH to be affected in any way by driftwood.
Note: This driftwood is for a planted 75 gallon community tank.