I've put a LOT of information on this site over the years. Most questions have already been addressed on one page or another, so please check out my sitemap and the other FAQ pages before you ask. If you still have a question after checking out a few pages, simply use the form below....I usually answer all questions within 48 hours.
Most simple questions come from visitors getting ready to start their first indoor garden. Once your garden is started, however, unanswered questions can become horrible, nagging problems that prevent you from getting the results you want! Believe me, I've been there! Drop me a line and tell me your story....my experience can help you avoid or fix those problems.
Click below to see questions from other visitors...
Garage Grow Room CO2
My question is about adding CO2 to the grow room. I'm running your most successful homemade hydroponic system . I'm set up in a garage that is apx. 25 ...
High pH - Hard Water Hydroponics
My well water has a pH of 8.2. I have tried lowering the pH so I can use it for hydroponics, but it bounces back (less than 24 hours). In reading, it seems ...
Hydroponic Gardening Book
Why haven't you put all this info into a hydroponic gardening book? For me it would be better not to have to be by my computer the whole time and I don'...
Preventing Plants from Sitting in the Hydroponic System Water
I have a NFT hydroponic system. I can't seem to find away to stop the plug (in which I started the seed off in) from sitting in the flow of water. Please ...
CO2 from Fermentation (Sugar and Yeast)
I have read that adding yeast and sugar will produce CO2. If so, would using a 5 gal bucket with a small air pump in it create a constant flow of CO2? I ...
Let's Get to the Root of This...
I have my main crop of veg and flowers from which I take my main food supply and flowers for the missus and home. After I harvest I shake the root balls ...
Beginner Advice
Hi Jason, Lee here from Durban South Africa. Firstly, your site has been invaluable. Thank you. There are a few questions that I need to ask before I get ...
Hand-Picking the Bugs Out
I'm attempting to grow specimen roses and I'm not doing too badly as it happens - thanks to your good advice here. However, during my regular checks I ...
CO2 and Flushing Air
In regards to CO2 enrichment; If the temperature and humidity is completely controlled in your grow environment and appropriate CO2 levels are maintained ...
DC Power for Backup
I made an aeroponics system and am 1 week into it. I've been concerned about power outages. I have a box from at&t that has an AC input and converts it ...
Cloning Questions
You're article on the homemade cloning setup and the article on preparing the clones leave some questions: when putting 4 or 5 clones in a 1/2 gal milk ...
Hydroponic Vegatables in a Two Story Metal Building
I work for an agency that provides services for folks with disabilities. We have a 5000 s.f. , two story metal warehouse attached to the back of our offices....
Seedlings and Rockwool
Would this work if I germinated the seed in a paper towel, then placed it in rockwool, then (last) take the little rockwool plug and put it in a cup and ...
Hardwood Cuttings
My husband is getting ready to make me a bubbler (rubbermade tote, air stones,..) The primary use for this is for me to propagate mostly woody shrub and ...
Getting Rid of Fungus Gnats
I've noticed tiny black gnats flying around my house plants even though it's January....I READ ON YOUR SITE ABOUT sm90, but would strong tobacco water ...
Predatory Nematodes and Composting Redworms
Will predatory nematodes have a negative or harmful effect on redworms used for composting? I figure on adding them, as long as they're not harmful. Could ...
Dissolved Oxygen Metering
Since dissolved oxygen is important, is it a good idea to measure dissolved oxygen and maintain a certain level? I have never seen anything posted about ...
Hydroponic Plants Grown in a Car
I want to find a kind of plant which can be put in the car to purify the air and decorate the car. You know the air in the car is very poor, especially ...
Excess Algae in NFT Channel for Lettuce
Manually cleaning the NFT channels of algae has become a problem. Is there an algaecide labeled for food crops that can be added to the nutrient solution?...
Grow Room CO2 on a Timer
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Using the timer method with CO2 tanks, what is the recommended cycle for boosting the levels? 4 times a day? 5 times a day? I have a 5x5 grow tent.
Answer:...
General Grow Media Advice
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I am setting up an Aquaponics system utilizing multiple types of hydroponic systems (Ebb & Flow, Deep water Cult, NFT...). I want to grow Lettuce, Carrots,...
Hydroponic Air Pumps
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In your Most Successful Hydro System ever, are the air pumps on the opposite side of where your solution is put in the system? and is that what I am ...
Algae in My Homemade Hydroponic System
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I'm about 3 weeks in on the hydroponic setup you describe as your best homemade system, and I'm starting to see some algae build-up. Is some algae typical,...
Algae Growth on Rockwool Medium
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How to cure algae growth on rockwool?
Answer: Phil- Unfortunately, prevention is the best answer for dealing with algae. Once you have algae, you ...
Transplant Seedlings to a Hydroponic System
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Hydroponics sounds like an excellent way to grow tomatoes. I am only confused about one step. After I have grown from seed my plant and it is ready to ...
When to Start Seeds for
Different Garden Plants
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How long do you use the grow lights on the seeds from start till you take them outside?
Answer: Pat- the answer depends on what you are growing....
Grow Box Outside, in Heavy Rain......
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My neighbor and I were wondering what happens to rain when a grow box is outdoors? I suspect not much would get inside the container, due to foilage and ...
Light During The Dark Cycle
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My partner isn't sure how important the the dark part of the day actually is. I say it's absolutely important that not even a pin hole of light get in....
A Hydroponic Mold Problem
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I set up a hydro system as in the article "My Most Successful Homemade Hydroponics System". Into day 7 and it appears that mold is growing on the roots,...
Which Plants for which Type of System?
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I'm just getting started in hydroponics. I can build/buy any type of system, but... First question after reading everything I can find... What types of ...
Is Marijuana a Woody or Soft Tissue Plant ?
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Is Marijuana a Woody or Soft Tissue Plant? This question refers to the dip-n-grow program.
Answer: Larry- Marijuana is mostly illegal in the US,...
What Grows Best?
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What grows best in a DWC? That's what I want to do. I'm interested in salad greens, herbs, spinach, collard greens....basic veggies....what do, and to,...
Water Tests and LED Grow Lights
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I'm gearing up to start my first aeroponic system thanks to your site. I've been reading up on the water aspect that you've talked about and found davistestkit....
Daily Feeder Archive
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Any chance of accessing an archive of the Daily Feeder, ***please***? As Steve Tyler says, "I don't want to miss a thing", lol!
Also I don't find anywhere ...
Airing a Problem Out? Air-Sacks
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I suppose like many people I am feeling the penny-pinch and so I look at cheaper ways of achieving similar results that 'high-end', expensive gardening ...
CO2 levels
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Is there a gauge I can use to check the CO2 levels in the room where I am growing plants? Is there a magic number that relates to CO2 levels?
Answer:...
Using a Greenhouse with Aeroponics
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I'm just starting to read and plan for my garden, but I was thinking of using a 10' x 22' greenhouse for my growing. I live in the southern part of Alabama,...
Soil Planting
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I have a few questions actually. The plant is 3 months old, the humidity levels are normal, and the lighting is fine 6500k fluorescents (dual bulbs), plants ...
Start Germinating the Seed
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I wish to germinate the seed and don't know if I should start in Aeroponics Cloner and then to Aeroponics System #1, or start in Aeroponics System #1 only?...
Keeping Clones in Clay Pellets
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I was wondering, what is the best way of keeping clones under fluros. I have built a hydro set up like the one in "My Most Successful Homemade Hydroponics ...
Growing Tomatoes in a Sunroom
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My sunroom only gets to 19 C during the winter. It faces West so it does get afternoon sun. I would like to be able to grow tomatoes in this room during ...
How to Grow Carrots in a
Hydroponic System
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HOW do you grow carrots in hydroponic gardens? I want to grow some inside and would like to know the best equipment to get started with doing that.
Also,...
Hydroponincs for NGOs in Laos
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I am currently undertaking initial research on a development program in Laos PDR in which we are hoping to supplement coffee farmers income and vegetable ...
Removing Chlorine and Chloramines from Water
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Is it safe to use aquarium dechlorination chemicals to remove chloramines and chlorine from tap water for plants that will be consumed, and is water so ...
Describe Tomato Pollen
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What does tomato pollen look like? If I vibrate the branch with an electric toothbrush, will the pollen be obvious.
Answer: Tomato plant pollen ...
Pollinating Tomatoes under HPS and MH Grow Lights
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I have a Better Boy tomato that is growing under indoor grow lights. It is blossoming now and has been for about 2 weeks. Will an oscillating fan cause ...
Easy Hydroponic Fertilizer and Easy Plants
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I really want to learn to grow food primarily. Flowers will do too as a distant second. I have a good fluorescent light (3- each 4 foot shop lights) and ...
