I just start my Hydroponic vegetable garden and I note that the pH changes; I start whith pH 5.8 and the next day it is about 6.8. I put the pH down and the next day it is up again. It is normal, or am I doing something wrong? The same thing's happening on my seedling box where I want low pH. Regards Giuseppe Tondo
This is completely normal for hydroponics. Usually, lower grade nutrients will break down and become unstable, faster than high quality nutrients.
This can be corrected by daily pH adjustments, which was the standard until pharmaceutical grade nutrients for hydroponics came out, or it can be corrected by using good quality pharmaceutical grade nutrients.
They will stay very stable, often for up to 2 weeks, with no pH adjustment necessary.
Here are some articles that will offer more information on hydroponic gardening:
https://www.gardeningknowhow.com/special/containers/deep-water-culture-for-plants.htm
https://www.gardeningknowhow.com/special/containers/hydroponic-gardening-indoors.htm
https://www.gardeningknowhow.com/special/containers/hydroponic-water-temperature.htm
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These articles should help:
https://www.gardeningknowhow.com/special/containers/hydroponic-water-temperature.htm
https://www.gardeningknowhow.com/special/containers/hydroponic-gardening-indoors.htm
I filled my reservoir with 60 gallons of tap water (29x70x9"(approx) (will be non active with soap stones)--added Hyd Peroxide, Epsom Salts, Citrus--then General Hydroponics 3-2-1 solution. I started with 7 PH water--let it sit and dechlorinate --today I went to measure PH and it was 2.9!!!!! Added about 1/2 bottle of pint of PH up--just got to 3!! Can it take that much or am I doing something wrong? The unit is outside in a covered location with screen walls and clear corrugated roof.
No, it shuoldn't take that much. These articles should help:
https://extension.okstate.edu/fact-sheets/electrical-conductivity-and-ph-guide-for-hydroponics.html
How many times must you circulate the water in a deep flow technique hydroponic system
This really depend on your set up. Here are some articles that will explain some of the basics:
https://www.gardeningknowhow.com/special/containers/hydroponic-gardening-indoors.htm
https://www.gardeningknowhow.com/special/containers/deep-water-culture-for-plants.htm
https://www.gardeningknowhow.com/special/containers/different-hydroponic-systems.htm
https://www.gardeningknowhow.com/special/containers/basic-hydroponic-equipment.htm
Left a lot of poop, we assume. But we can’t see any bug/worm/moth.
Unfortunately, without photos, I can see less than you can! I will not be able to tell you what ate your plants, but it could be anything. You may have to match the poop that you see with something online.
You local extension service can help, as well. Here is a link to help you find the closest to you:
Planning to grow these plants by using a fabric/felt like material.
These articles should help:
https://www.gardeningknowhow.com/special/containers/hydroponic-gardening-indoors.htm
https://extension.umn.edu/how/small-scale-hydroponics
I have a NFT system and in the bottom of the tubes there is a light brown dust like algae (??). When you move you hand over it it moves like dust. It is strange stuff but is now also attaching itself to the roots of my plants. I have researched online and think it is possibly Mustard Algae???? I use Oxy Plus to control algae growth but it has NIL effect on this light brown stuff.
It could be biofilms or algae, both of which should be removed. Here is more:
https://extension.umn.edu/how/small-scale-hydroponics#food-safety-in-hydroponic-systems-2645810