Hey guys Ive tested my water and it is nasty stuff for the plants I guess. I heard that hydrogen peroxide and vinegar raise and lower the pH is this true? Anyone have experience with this? And if you have could you please help me? Thanks everyone.

I know you need to use acid, so vinegar may work. Wouldn't try it though till someone can say for a fact it works and does no harm to the plants. Vinegar is wonderful stuff though, it has so many uses. The clone king actually told me the exact name of an acid you can use but i've completely forgotten what it was. for some reason I can't get hydrochloric acid out of my head, but I don't think this was it. if nobody answers I'll get back to you tomorrow when I can ask again.

Yeah, you can use an acid like vinegar, or lemon juice to lower pH, but it is not the best method. You will have to adjust it again soon, because it won't be stable. Phosphoric acid is more stable, and it provides phosphorus, the P in NPK, which the plant can use.

Most pH Down products sold in hydro shops are primarily phosphoric acid.

HTH

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Do what potroast said...go to a hydro and get pH up and pH down solutions...its the best way imo

First of all ... do not use vinegar to lower PH. This comes from a guy (me) who wiped out an entire, expensive, Fig Widow crop using vinegar as a newbie.

I'm assuming that you are in soil. In the future, add one SMALL handful of Granulated Dolimite Lime to each two gallons of your soil mix. That will keep your PH in check for the entire grow. By the way, a PH of 7 (neutral) is just fine for soil grows. The lower PH figures you see, such as 5.8, or 6.0 are intended for hydro grows. Also, invest in a Reverse Osmosis system. Your plants will love you for it. Here's a link to cheap RO units: http://search.ebay.com/reverse-osmosis_W0QQfrtsZ150QQfsooZ1QQfsopZ3QQsbrsrtZd

Vi

I grow in soil and the only thing I use to control PH in Phosphoric Acid 85%. A very small amount in a 5 gallon pail of water is my normal watering solution when I am not adding nutes. I use well water that has a PH of 8.0 so PH up is not needed in my grow.

If your looking to save some money you might be wise to look for Phosphoric Acid at a janitorial supply store rather than a Hydro store as I have seen it sell for much less in these stores.

Hope this helps someone.

for the limes Viredd where can i find those? Wal-mart? or just a local nursery center?