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The70’s
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GotchaUK gallons/quarts aren’t the same as the US.
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GotchaUK gallons/quarts aren’t the same as the US.
I mentioned earlier that I use oral syringes to measure
If you’re actually going to grow, start a journal.
Might want to wait then.
Since it’s going to be legal the police won’t be a problem, but someone who thinks you’ve got a pound of buds might want them. So not talking about it is advisable.
Plants have different nutrient requirements as they mature. There are several manufacturers providing multiple nutrient solutions to add to your water. You have to add two or more, the volumes depending on the stage of growth. I chose the General Hydroponics Flora Trio as it has a long history of use with cannabis. My thought was it would be easier to get help when things went wrong. Reading through multiple posts here, and elsewhere, I found that at full label strength as recommended by the manufacturer, they were too strong and would cause nutrient burn. A common thread was start at far less than 50% and work your way up. I chose to start at 25% and keep it constant throughout the grow, unless the plants showed signs of nutrient deficiencies. My last successful grow was at 33%. Here is the feed schedule I used:
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General Hydroponics Feed Schedule - 33% of Label Strength
Flora Micro, Grow, and Bloom are the core nutrients, and are required. Flora Micro is available in two formulations. One for hard, the other for soft water.
CALiMAGic is a supplement I use as my water source is a Reverse Osmosis filter. It is often required in lesser amounts with other water sources.
Rapid Start is an additive used to promote fast and healthy root growth.
Floralicious Grow and Plus are additives to promote plant vigor. Floralicious Bloom was discontinued at the time I purchased my nutrients, so it is not shown. Floralicious Plus is my substitute. These products leave a deposit on the walls of my watering buckets, so I don't know whether or not they'll clog drippers in automatic watering systems.
Liquid and Dry KoolBloom are supplements to increase bud production and weight. I start with the liquid, and switch to dry when the trichomes start getting cloudy.
Flora Kleen is used to flush the salts from the plants prior to harvest. When the desired percentage trichomes have turned amber, I use it at full strength for four days, followed by four days at half strength, and four days of water with CALiMAGic. Why four days of each? That's how long 18 liters of the water/ nutrient mix lasts.
I strongly recommend using the metric system when mixing nutrient solutions. Accuracy is important, and using the metric system makes accuracy easy. I weigh my water to accurately get the desired volume. One liter weighs one Kilogram.
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Weighing Water to Get an Accurate Volume
I use 1, 5, and 10 ml oral syringes to measure out the liquid nutrients. An accurate 100gm X .01gm scale is used to measure the dry KoolBloom. I also have calibration weights for my scales to ensure accuracy.
TDS meters (Total Dissolved Solids) are used to measure the nutrient concentration. In most hydroponic systems the concentration will vary as the nutrients are taken up by the plants. The TDS needs to be checked and possibly adjusted daily for these systems. Coco systems do not need the daily checks, or even to check new solutions if they are accurately mixed. I have one, but it's only use is to check the condition of my RO membrane monthly.
A method of measuring pH is critical to the success of all hydroponic systems. There are pH test strips and drops available, but these are notoriously inaccurate. I highly recommend an accurate pH pen or meter. Go for a minimum accuracy of 0.05 pH and precision of 0.01 pH. Accuracy refers to the measurement performed by the tester, precision refers to the display of that measurement. Most hydroponic systems require daily measurements and adjustments, while coco based systems require measurement and adjustment only when mixing a new batch.
I strongly suggest calibrating your TDS and pH meters at least weekly. I calibrate before each use.
25%, and 40% were Crop King's Crown RoyaleOne last question, what were you growing with this schedule, would you use this as a predominant schedule ?
I'd be tempted to split it into two lights with two panels on 2' centers and a driver for each. That gives you more flexibility to run strains that differ in height. Leave some room in the frames so you can add supplemental lighting such as UV, IR, and far red if you want to at a later date.
Some do, others don't. Check with your vendor. If it has one, often it's a smaller door than the one in the front of the tent, more of an access hatch than a door.
It depends on how you grow your SCRoG. If you limit it to a little less than your arm length, you will be able to maintain it from the front. A SCRoG needs a lot off attention while it's filling your screen.