your N ranges from 5.5 to 8.0 in hydro but you can ph the tapwater, sorry i didnt make that clear i would ph it to 5.6-5.8, sorry for the confusion me fellow swampy
ive heard of things like lemon juice etc but you'll have to look into that yourself i just use ph down as i don't care about chemicals as i think the organic argument lacks credibility imho
Try baking soda for ph up and lemon juice for down I have not ever tried this just something I read once. If Im wrong about either of the two let me kno good luck. Og