Quote Originally Posted by phenom420
water and used a ph test from my hydro setup and it came back like 3, wtf? Will this hurt my plants? Or is the test no good this way?
What are your nutes made from...battery acid? Not only would 3.0 ph water harm them, it'll kill 'em.

But doubtful it's an accurate reading.
...7.0 before adding 1 tsp of nutes? No way the ph can drop to 3ish with only 1 tsp:gallon of nutes, regardless of the maker or brand of nutes used.
...What color does the nutrient change the water to?
...What kind of ph test kit is it? A color-coded one will get skewed results if teating a colored liquid.
No other additives that may affect ph?