Is this safe to use??

I don't think your supposed to use spa products to manage your ph, because those products aren't made for human consumption. Go to your local grow store and get some ph up or down, you can also use citric acid
 
Yea thats what thought, my plants are browning in weird places and patterns I've never seen so I thought it was that stuff. Thanks guys
 
Don't use that! That is specific to spas. Just go to plant world or a plant nursery and get the ph up or ph down bottles. They're under $5 and you won't regret it later.
 
Back
Top