Can you use pennies for deficiencies

[beachbum8391]

I've heard you can use pennies in soil for zinc deficiencies is that true.

[Dutch Pimp]

zinc deficiencies are rare...use standard cannabis nutes

check the grow forums...Growing Information - Cannabis Forums Message Boards - Medical Marijuana, Cannabis Club, Dispensary, News (http://boards.cannabis.com/growing-information/)

[beachbum8391]

Also a two month old plant has leaves turning yellow only on the armpit leaves not the fan leaves any clue what i can do??

[Rusty Trichome]

Check your ph, and fill-out the troubleshooting form to the best of your ability. A picture or two would help.

WTF are armpit leaves?