ok im new here and a complete newb. i have a 36 gallon tank. set it up and have been running it for a few days now. setting it up as a freshwater tank and will probably start with platy's to start and add some other species later. want to start adding fish but my chemistry is out of whack and dont know what i need to do to fix it. stats are gh-180, kh-180, ph-6.5, nitrites is 0 and nitrate is 20. how do i get the gh and kh down and the ph up a lil bit?