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Hydroponics Lighting Glossary of Terms

We can all use a reference guide and so here for your pleasure is a glossary of hydroponics lighting terms.  Print it out, bookmark it, write em down — this should cover any terms you stumble across while walking down the path to growing godliness.  If you ever have any questions on anything hydroponics, shoot […]

Can I grow in a dark basement with lights? I have sodium light and would like to set up a hrdro in the basement. How many hours of light do I need to supply?

Can I grow in a dark basement with lights? I have sodium light and would like to set up a hrdro in the basement. How many hours of light do I need to supply?

NFT System

I am wanting to build a very small NFT system. I have 8 foot of 6inch PVC. I only want to grow 3 plants.

I have tried to clean my grow rocks…

I have tried to clean my grow rocks using a diluted bleach water solution and brushed them around with a big brush. There is still a white lime looking residue on some of them that doesn’t seem to come off. Just wondering if you know a good way to clean this off using stuff found around the house?