Simply Hydroponics:

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Hydroponics University:

• Classes with Professor Hydro
• Ask the Professor
• Professor's Periodic Tips
• Simply's Glossary

Articles and References:

• Maximum Yield Questions and Answers
• Article 4-2: Waging War Against Pest Insects
• Article 4-2: Perfect Room
• Article 4-4: Sexual Propagation
• Article 4-6: What The Customer Wants
• Article 5-2: Sample Trials
• Article 5-3: Yield Predictions
• Article 5-4: Q's Eric Fulvic Acids
• Article 5-4: Q's Liquid Caron & Gas
• Article 5-4: Q's Nutrient Problems
• Article 6-4: Create Your Own Grow Room
• Article 6-6: High Performance Lighting
• Article 5-3: Yield Predictions
• Article 1-1: Caring For Cuttings
• Article 1-1: Evolution of Reflectors
• Article 1-1: Flood & Drain Systems
• Article 1-1: Dealing With Plant Problems
• Article 1-1: Effective CO₂
• Article 1-1: Air Movement in Indoor Gardens
• Article 1-2: Benefits of Silicon
• Article 1-2: N.F.T.
• Article 1-2: A Note on Rooting Mediums
• Article 1-2: Efficient Nutrients
• Article 1-2: Fungus Gnats
• Article 1-2: How To Automate Temp & Humidity Control
• Article 1-2: UV Air Ozonators
• Article 1-3: Electrical Safety in Grow rooms
• Article 1-3: Pest Profile: Aphids
• Article 1-3: On The Leading Edge
• Article 1-5: Benefits of Kelp
• Article 1-5: Lighting & Plant Growth
• Article 1-6: Aero Hydroponics The Way of The Future
• Article 1-6: Persimilisa Predator Against Spider Mites
• Article 2-1: Advance Nutrient Management
• Article 2-1: Build a Strong Foundation
• Article 2-1: Technique For Effective Lighting
• Article 2-3: Why Use Calcium Peroxygen
• Article 2-3 Effective Use of CO₂
• Article 2-3: Designing and Indoor Garden
• Article 2-4: Links in the Chain
• Article 2-4: Oxygen
• Article 2-4: The Bucket System
• Article 2-4: The Odor Problem
• Article 2-5: Different Forms of Odor Control
• Article 2-5: Calcium Build-up
• Article 2-5: Mold Prevention
• Article 2-5: A Guide to Pre-Flowering
• Article 2-5: Water Should Taste Good to Plants
• Article 2-6: Calcium Peroxide
• Article 2-6: Mildew
• Article 2-6: Using a Strain to Grow
• Article 2-6: Garlic
• Article 2-6: Parenting Your Plants
• Article 3-1: Insecticide
• Article 3-1: Propagation
• Article 3-2: Aeroponic Problems
• Article 3-2: Growing Medium
• Article 3-2: How to Root Cuttings
• Article 3-2: I Use Oxycal
• Article 3-2: What is Hydro
• Article 3-3: Hormones
• Article 3-3: I am Fairly New to Hydroponic Growing
• Article 3-3: NFT Gully
• Article 3-3: I Have Been Growing For Years How Do I Increase My Yield
• Article 3-3: Optimum Candelbra Method
• Article 3-4: Growing Environment
• Article 3-4: Pesticides
• Article 3-4: Harvesting Profits
• Article 3-4: I am Beginning
• Article 3-4: Purple Plants
• Article 3-4: I Work for the City
• Article 3-4: Rules of Green Thumb
• Article 3-4: TDS-EC
• Article 3-5: I Have Tomatoes
• Article 3-5: Hydroponic Orchids
• Article 3-5: I am growing in Sunshine Mix
• Article 3-5: Do You Know About CO₂
• Article 3-5: Root Rot
• Article 4-1: Trimming Technique
• Article 4-1: Do I Need More Light
• Article 4-1: Commercial Systems
• Article 4-1: Foundation for Maximum Yield
• Article 4-1: Green Growth Plants Into Short Day Crop Production Plants
• Article 4-1: Ozone Generators
• Article 4-1: Hydroponics Offers a Healthy Alternative
• Article 4-1: Nutrients Too Much or Too Little
• Article 4-1: Leaves Turn Upward
• Article 4-1: Trimming Technique
• Article 4-1: What Kind of System Do I Want?
• Article 4-2: Home Grown Tomatoes
• Article 4-2: Hydro Humates
• Article 4-3: Hey You Get Out of The Dirt
• Article 4-3: Cloudy Reservoir
• Article 4-3: Home Sweet Home Grown
• Article 4-3: Adding Calcium Peroxide
• Article 4-3: Hydroponics Foliar Fertilization
• Article 4-3: Male VS. Female
• Article 4-3: Nutrient Balances
• Article 4-3: Practice Prevention
• Article 4-3: Orchids
• Article 4-5: Why Hydro?
• Article 4-5: The Grey Ghost
• Article 4-5: Asexual Reproduction Cloning
• Article 4-5: How Does Your Garden Grow
• Article 4-5: NFT Gully
• Article 4-5: Mildew
• Article 4-5: Odors Are Like a Cup of Black Coffee
• Article 4-5: Oxy-cal
• Article 5-1: Reflector
• Article 5-1: Because They Are What They Eat
• Article 5-1: Automated Cloning
• Article 5-1: Calcium
• Article 5-1: Plant Nutrition
• Article 5-3: Yield Predictions
• Article 5-3: The Evolution of Plant Nutrition
• Article 5-3: Back To The Basics
• Article 5-3: Fungus Gnats
• Article 5-3: Hydro Culture
• Article 5-3: Nutrient Solution Problems
• Article 5-3: Growing for Maximum Yield
• Article 5-3: Build an Ebb & Flo
• Article 5-3: Closed Environment Agriculture
• Article 5-5: The Dirt on Dirt
• Article 5-5: Organic Hydro
• Article 5-5: Hydroponic Chives
• Article 5-5: Low Lives Life In The Soil
• Article 5-5: Do Organics Really Taste Better?
• Article 6-1: Heat In Aeroflo's
• Article 6-1: Bonsai Grower Q's About Lighting
• Article 6-1: Bad Nutrients
• Article 6-1: Growing Your Own Food In a Tub
• Article 6-1: Cherry Tomatoes
• Article 6-1: Natural Bug Control
• Article 6-1: Soiless Salad
• Article 6-1: Strawberry
• Article 6-4: The Most Important 2 Weeks

Additional Articles:

• Comparative Product Testing
• Successful Cuttings
• Foliar Feeding
• Free System Plans
• Ebb & Flow System
• Water Culture System
• Hand-Watered Bucket
• Getting Started with Hydroponics
• Growing Medium
• Expanded Clay Pellets
• Using Rockwool
• Gravel, Water, Saw Dust & Lava Rock
• Hydroponic or Organic?
• Lighting for Your Garden
• pH and why it's so important
• Basic Hydroponic Systems and How They Work
• Using CO₂ Successfully

Diagrams and Illustrations:

• Ballast Diagrams
• AquaFarm Air-Lift Pump
• Bato Bucket System Plans

Questions and Answers

• Simply's Most Commonly Asked Questions & Answers
• Previously Asked Questions
• Hydroponics Myths
• What is Hydroponics?
• Is algae harmful to my plants?
• How do I attach duct work to my air cooled reflector & fans?
• I have a Bat House but the bats are not using it, what should I do to get the bats to use the bat house?
• I notice that my ballast makes more noise than it used to or that I have one ballast that makes more noise than the other. How do I fix these problems?
• What temperature should my ballast run at?
• How do I get the most benefit using foliar sprays?
• What reflective material is the best?
• What level of humidity should I keep my bloom/flowering room at?
• Why do I keep getting bugs and/or diseases?
• How often should I clean the glass in my air-cooled reflector?
• How often should I clean my pH/TDS meter?
• What is the best way to get my tray's and/or containers clean?
• What CO₂ level do clones need?
• Why doesn't my clone machine work as good the second time I use it as it did the first time I used it?
• What level of humidity should I keep my clone/propagation room at?
• What temperature should I keep my clone/propagation room at?
• Are clones adults or are they babies?
• Why do my clones get moldy and/or rot under my humidity dome?
• I use a CO₂ generator & I have the equipment off at night. But the CO₂ level keeps building up at night, why?
• What is the normal CO₂ outside?
• What level of CO₂ is best for my garden?
• I have a CO₂ regulator that freezes up on me. What is wrong with it & how do I fix it?
• Do I need to run my Co₂ equipment when my lights are off?
• What is the best way to provide the plants with Co2 using a tank & regulator?
• What size container should I have my plants in?
• What is the best way to control the CO₂ level in my grow room?
• What size humidity dome should I use?
• There are deer/squirrels/birds/raccoons/ect. eating my garden how do I stop them from eating my crops?
• I had a disease problem & lost all my plants/or I am starting over from scratch. How do I eliminate the risk of the bugs/disease still being in the area waiting to re-contaminate my new garden?
• I need to have reflective material to bounce the light back to the plants but I do not have a wall to hang the reflective material on. What can I do?
• Do my fans that cool my lights need to be on when my light is off?
• Should I use a fan or a blower?
• What is the fastest way to provide a plant with a beneficial nutrient and/or additive?
• What size Ebb & Flo fitting should I use on my tray?
• My plants have tip burn how do I fix it?
• How do I get better flavor & aroma?
• Why shouldn't I Foliar Feed with the lights on?
• How can I go in my grow room when the lights are off to foliar feed if I cannot turn on the light?
• What level of humidity should I keep my vegetive/grow room at?
• What is the best way to hang and/or attach Mylar?
• How do I eliminate the hot spots under my lights?
• How much should I water when I water?
• When should I use a humidity dome?
• Should I use hydroponic nutrients or organic?
• How do I kill pathogens in the reservoir, BEFORE they hurt my plants?
• How many hours of light do my clones need?
• How many hours of light do my mom's need?
• How many hours of light do seedlings need?
• When should I use a light meter?
• How much would I benefit from adding a light mover?
• I water my plants from the top of the container & I noticed that after a couple weeks the soil/hydroponic growing medium starts compressing. Is that bad & if so how do I fix it?
• Sometimes when I buy a new Metal Halide (MH) bulb, you can see little balls rolling around or the inner arc tube is hazy white. Is that normal or is that new bulb no good?
• What CO2 level do Mom's (a mom is the mother plant the clones a cut from) need?
• I have a lot of mosquitoes how would I get rid of them WITHOUT using pesticides?
• How do I know if I need CO2?
• What size net cup should I use?
• Should I use a time release nutrient or a liquid nutrient?
• When I mix my nutrients, the next day I notice the nutrients have settled to the bottom of the reservoir. How do I stop this from happening?
• Do my oscillating fans need to be on all the time?
• How many plants should I have in my size area?
• The plants on the outer edge of my tray are not doing as well as the plants directly under the light. How do I fix this problem?
• How bad will a power outage hurt my plants?
• Should I presoak my starter cubes/hydroponic growing medium (anything other then soil...ex: sand, gravel, sphagnum moss, coco, perlite, ect.) /soil?
• How do I stop Algae from growing on the top of my containers and/or tray?
• How do I help stop my plants from getting moldy in my indoor garden and/or greenhouse?
• What is an easy way to help stop my plants from drying out when I first transplant them?
• How do I stop my water pump from becoming clogged?
• I am waiting on my ph up & down or I cannot get to the store for a couple of days to buy my ph up & down what can I use as a quick fix?
• Why shouldn't I have reflective material on the bottom of the plants bouncing light to the bottom side of the plant canopy?
• How often should I replace my bulbs?
• I reuse my soil/hydroponic medium & I have noticed that each crop my yields go down and my plants look less healthy. What is causing this and how do I fix it?
• What temperature should I keep my grow room at?
• What are some things that I can add to make the root system healthier?
• When I look at my roots they are not completely white, does that mean I have root rot? If so, how do I fix it?
• When should I give my seedlings light?
• How can I get my seeds to sprout faster?
• How do I measure small amounts of nutrients, like 3 ml?
• What is the best way to start my seedlings?
• I am growing Watermelon and Squash. I have noticed that the plants have less bugs and disease when I grow them up the trellis netting than if I let them grow on the ground. The problem is how do I support the fruit?
• How do I test the pH & PPM/TDS in my soil/hydroponic growing medium?
• When is the best time to foliar feed, before the lights come on/the sun comes up or after they go off/the sun goes down?
• When is the best time to foliar feed, before the lights come on/the sun comes up or after they go off/the sun goes down?
• What causes my tomatoes to split/crack?
• I put an oscillating fan blowing on my plants & the plants dried up. They look almost like a nutrient problem, what did I do wrong?
• Is there such a thing as too much light?
• Is there such a thing as too much oxygen in the reservoir?
• Why do some of or all of my plants die when I first transplant them?
• What type of pH meter is better?
• Which is better Ebb & Flo (Flood & Drain), Drip, Aeroponic, or Run To Waist/Non-Recovery Systems?
• What hydroponic growing medium should I use or should I use soil?
• Why do plants do better when the water drains after watering than if the water is not allowed to drain?
• Why do people use water purification/filtration systems to water there plants?
• Why does my air pump get water in it when the power goes out?
• What temperature should the water in my reservoir be?
• I hand water my plants and I have to water too often. What can I do so I do not have to water as often?
• I cannot get to the gardening store in time to buy a wetting agent, what could I use as a substitute?
• When should I adjust my pH?
• Would my plants get the most benefit out of foliar feeding in the grow/vegetive stage or the bloom/fruit & flowering stage?
• How do I know when to water?
• Why do my outside plants like squash or cucumbers get white spotty mold on the leaves & how do I fix it?
• Why do I need to put my lights on a timer?
• I make a fresh batch of nutrients & adjust my ph to the level I need. A day or 2 later I check my ph and it is way out of acceptable range. What causes this & how do I fix it?
• My plants are wilting but my medium is wet, what is wrong?
• What can I do to make my plant more able to withstand heat?
• What causes yellow spots on plants?