Help!

Quick question im using the ph control kit by general hydroponics its not a meter you have to look at the chart so match up colors anyways im like at a lime green and I want to bring it down but how much ph down do I use I have an eye dropper and do I need to mix it around or nah im running two gh hydro complete buckets with air stones so the water is getting pushed around already right. Help.

Ok 74 views and no one can figure it out I went with one ml and it put me right about where I wanted it where everyone wants it. Slow and steady wins the race. Trail and error I like as well. This time it worked.

well if u dont have a ph metter to check wat its at its kinda hard to figure if u need ph up or down but if u wanna do it anyways add slowly and see wat ur plants do

You are not going to be able to grow without a proper ph meter. Buy some soil if you want to have a prayer, but no chance @ hydro.