I NEED HELP
I START TO GROW HYDRO SYSTEM
AND I WANT TO KNOW HOW MUCH IS THE TEMPERATURE IN THE ROOM I NEED FOR GROW
NAD TEMPERATURE OF THE WATER
AND I WANT TO KNOW AFTER I GROW MY PLANTS AND I HAVE MOTHER PLANTS THAT I CAN USE FROM SHE TO GROW AGAIN,I WANT TO KNOW IF I CAN GROW 2 MOTHERS OR 3 IN THE SAME ROOM BY THE SAME SYSTEM?
AND MAYBE SOMEBODY KNOW IF ITS METTER THE TYPE OF THE PLANTS I WANT TO GROW FOR EXAMPLE (white widow or ak 47) if i need different lights or is the same and i can grow them together.
im sorry for my english
:mummy:thanks brothers
i hope you help me

About a quarter way down the page there is a ton of info on hydro.

Marijuana, Growing the Ganja, Weed Farming - Trichome University 101. - FAQ: GrowFAQ

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Read this >>>>> FAQ<<<<<
Then get your self a good HPS light and a timer. For Veg leave it on 18 hours a day. To fruit/flower switch to 12light 12dark.

P.S PLEASE LOOSE THE "CAP LOCK"

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Never stop growing.
Seeds are the future.