am new to hobby......have 30 gal tank with 10 various tetras and 2 albino corys........ammo has dropped to .5......nitrite...0.......nitrate.......<.5.......(tank is cycled, i believe???).......i plan on having a few dwarf gouramis.....danios and rasboras..........my ph from the tap is 7.8.....gh is 11.......kh........7.......i know my ph shud be around neutral....7.0........i am planning on diluting the tap water with distilled.....to soften it and hopefully make it easier to bring the ph down.......i have tried ph down and discus buffer with no success......it keeps rebounding back, because of the high KH.....(man o man this hardness stuff is confusing........why cant there just be one measure of hardness)AM I ON THE RIGHT TRACK??.....i have read and reread and reread all about general hardness and carbonate hardness......shud i bother with the hardness and trying to get the ph to 7.0 or just leave things the way they are..........all my guys "seem" to be doing well!!