Guys, I have some "Hyponex All - Purpose Water Soluble Plant Food" that I got from my sister. I would like to use some on my outdoor grow this spring and summer. But, as I was thinking, 15-30-15 could be bad for your plants or is it just me? N -15% Ph(P2O5) 30% Potash - 15% I'm a newbie to fertilizers on cannabis, so yeah. Anyone think I could use this? Or is it bad? Thanks, StonerNack