<span class="link_user">@BigDaddyK</span>, I use AN as well mate. Their products do have a ph of 5.5 but when adding it to water you would need a lot of nutrients to get it to 5.5 so you would probably still need to lower it in hydro. In soil Iāve never adjusted my ph with AN products as it sits at 6.5 with them. Also there isnāt enough micro nutrients in them. Avoid cal mag as it tends to have high nitrogen. I use āmono Calciumā and mono magnesium. Itās strong so I water 0.1 per litre every watering and Iāve never had any issues with either. Hope this helps!