Mystix212;1668491; said:Driftwood will soften the hardness and lower the pH. Not by any substantial amount, but your south american fish will like you for adding the wood in.
Most SA's prefer the water that color. It seems to make them more comfortable. The only problem is if you don't like it. Oh, and the soft water being subject to a PH crash.japes;1668403; said:It's called Tannins, many pieces will do it for months or years.
Best solution without a doubt, Seachem Purigen. This product is nothing short of brilliant, I will never own another tank that doesn't have Purigen running inside it's filter.