hey guys, i agree a grow log or something similar in the grow log of hydro would be good.

But as far as the Ph being to low, that is not a problem. your going to need some more water from the tap or your filter if its Ph is about 6 or 7 or higher, then just add, however be warned your going to have to add half or more I would think so if you have a gallon (of 4.0 water) possible 2 or 3 gallons (of higher Ph tap water) to bring that Ph down, maybe more, but that just means you will have more water prepared. then just remember to let the water sit uncovered for about 12 hours or more, if you can, if you cant probably not to bad, this is for chlorine evaporation. so just add normal non phed water. the attempt is to mix the higher Ph (un Ph balanced by you) water from the tap or filter and add it to the lower ph'ed water. Check your Ph after about 15 mins after mixing.
another thing is you can use that 4.0 water to Ph balance your water for your rez in the future, cause the thing is once the water is phed to about 4 or so, then it becomes somewhat concentrated Ph balance, but not really. in other words in stead of putting Ph down for the next month or so just use the 4.0 water, to balance the water. the reason I say this is because if you have 1, gallon of 4.0 water it will take about 2 or 3 gallons of 7.0 (or a higher PH) to get it back to 5.8.