Dyna-Gro PH down

anyone know why Dyna-Gro's PH down has an NPK of 1-5-0??

because it's 1% N and 5% P2O5

ok wow, I just saw that botanicare ph down is 0-15-0

i never knew ph down has npk value like this

does anyone know the NPK of Advanced PH down? cuz I can't find it...

also GH doesnt seem to list an NPK on theirs.

It's because it's phosphoric acid. That's hydrogen and phosphates.

H3PO4

pH up and pH down are food. You could also use nitric acid for N, or sulfuric acid for S.

pH up is almost always potassium hydroxide, which sources K.

butsack said:

ok wow, I just saw that botanicare ph down is 0-15-0

i never knew ph down has npk value like this

Click to expand...

For some reason, classifying your product as a pH up or pH down exempts you from having to provide NPK values, or percent of anything on it.. so most products don't list anything about the concentration.

butsack said:

does anyone know the NPK of Advanced PH down? cuz I can't find it...

also GH doesnt seem to list an NPK on theirs.

Click to expand...

yep that makes sense. just never really thought about it, I use Advanced ph down mostly, and it doesn't have an NPK on the bottle. Wife came home with ph down from DG with an NPK on the bottle, im like "uhhh!" ...and it takes a lot more volume. Why don't Advanced or GH put the NPK value on the bottle? is it derived from some other source?

*edit:

you already answered this, so thats crazy as hell! at least with advanced it barely takes any, but some of these take ounces and ounces, wowzer