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Let me explain why air-stones are a waste of money and actually impair the oxygenation of your reservoir solution. Fact: Water is oxygenated buy the movement of it's surface, not by little bubbles within. Although the tiny bubbles produced by an air-stone do agitate the surface of your res...

I haven't heard this subject discussed much so I thought I'd introduce some food for thought. We all want to grow superior MJ which starts with superior genetics. Now that you ordered a 10 pack of seeds you might consider this: Every seed from the same breed is inherently different. 1 in...

If you are interested in using DYNA-GRO instead of GH for the Lucas Formula here is my best shot at the recipe: Manufactuer's Proven Analysis GENERAL HYDROPONIC ----------FLORA SERIES---------- HARD WTR Micro Manufacturer...

I hooked up a Vermilogic RO unit last night. Water 'in' is 230ppm, water 'out' is 220 ppm. I'm thinkin' that my meter is reading particles of carbon that comes out of the filter. Is this what's going on and should I be concerned? Will the output ppm go down eventually?

Great article in the new RS: http://www.rollingstone.com/politics/story/32873354/marijuanamerica

Waddup RIU! This journal is about my DIY 2010 grow cab. This is my 3rd cab build and my first time using water-cooled lighting and a digital ballast. This build took about 2 weeks for me to design after I had decided on the cabinet. It took me 2 months to decide on a cab. The cabinet that I...

Welcome to my thread. I'm starting this thread so I can link back to it when I assist FAQ's. Please do not post in this thread. Bump +rep always welcome if this info helps you. Good Growing! I wish everyone max yields! First, a little about me. I received my California Prop. 215 Medicinal...

Trying to convert teaspoons to milliliters? Cubic feet to gallons? How many G's in a LB? This website can convert any unit of measure. /http://www.onlineconversion.com/

I'm a qualified electrician and carpenter with a few grow rooms under my belt. Is there anybody out there able to generate buisness as a grow room contractor/builder? I'm aware of the obvious challenges which keeps me from posting fliers/buisness cards at local dispensaries here in Northern...