hello, I have a question on products that work to lower ph. I have a 60 gallon tall tank. I used air stones in buckets of water for 48 hours to test my tap ph which was 7.8-8. I'm trying to lower it to 7.5 or Lower in my aquarium due to it being about the same reading 7.8-8 ph. Is this possible without the use of chemicals or a osmosis system and just use drift wood or almond leafs as a somewhat perminet ph maintainer? Maybe just periodically change the wood out when the Tannins start to run low? I also have a question on how to prepare the wood prior to putting it in the aquarium. Does boiling the wood lower the tannins? If so how much? Would I benefit more by just letting it soak for 1-2 weeks? Would soaking it remove tannins? I also don't have a KH test but ordered one today.