Styrofoam in Hydroponics
Hi, I have seen styrofoam float used widely in hydroponic farming. Agree hydroponic is pesticide free, but does styrofoam has similar"food grade" like PU foam MDI or is styrofoam used in hydroponic farming safe at all? Thank you.
Nontoxic Garden Hose
I was wondering if you know of a safe nontoxic garden hose, one that doesn't leach any toxic chemicals or plasticizers into the water?