Originally Posted by
yoko2009
if your tap water has a high ph of 7.5-8 my guess is that its also hard water and will take an age to come down if ever! If i was you i would have a container thats constantly filled with water say 20-30 gallon and have an airpump bubbling away, see if you can get some aquarium peat and put it in some sort of netting and just have it dangling into the water, this will help to bring the ph down naturally to 6 - 6.5 if you have a good local aquatic store go in and ask them what natural things they have to bring your water down, hopefully they will have the aquarium peat and if you can get a small filter in there and put the peat inside the filter so that the water is constantly passing through. It might seem a bit excessive but its what i would do. For my next grow im actually going to use water from a local aquatic store i used to work at, im going to fill my 20 gallon bottle (the upside down ones you get in offices) once a week from a fish tank holding discus fish which love ph 6-6.5 soft water, im going to use it on half my plants and compare. fish water is full of nitrates and other natural foods which im convinced will have a good effect
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