I am a brand new newbie here. I have a brand new 29 gallon aquarium. My ph level is staying between 8.0 and 8.4 and my then my ammonia is about .50. We tried a 10% water change, and the ammonia level drops to .25. Then we did a 40% and the ph level was about the same, and the ammonia dropped. The color was not a true 0, but also not a true .25. So it is in between. What can we do with the ph level? I was told to try driftwood, and not the kind one would get from a lake either, but one actually for aquariums. We have 2 Emerald Green Corys, 3 bleeding hearts, 2 Zebra Danios, and 1 Dwarf Gourami. We have one rock in it and 7 plastic plants. We have been doing partial water changes daily. The tank has been set up for almost two weeks. Any sugestions for us?