"trace elements"

[Jon]

Hi. My name is Jon Whitsitt, and a friend and I are conducting and experiment with hydroponics. Our teacher wants us to mix all the nutrients ourselves, and we only need something called "trace elements" if anyone could give us a hand, it would be greatly appreciated. Thanks for your help.

[Ron]

Hi Jon Whitshit
I'm sure you heard that before.
Here are your trace elements you will need.
Iron (Fe)
Manganese (Mn)
Boron (B)
Zinc (Zn)
Copper (Cu)
Molybdenum (Mo)
Chlorine (Cl)

Ron