Experimenting with direct soil aeration in a coco coir build

hijiki
hijikistarted grow question 6mo ago
Hi! I’m a first-time grower starting with a bag seed. I've been learning from Grow Weed Easy. I’m on Day 24, managing pH and nutrients carefully.My experiment: In hydro, oxygenating the solution is key. In coco, we usually just aerate the water. I wondered, "What if I pump air di
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squalino
squalinoanswered grow question 6mo ago
Hi, I hope this helps you! In pure hydroponics (like DWC), the roots are submerged, so without an air pump, they suffocate. Coco substrate, on the other hand, is naturally very airy. Even when saturated with water, it retains about 20-30% oxygen, which is its great strength compared to soil. "Pushing" air Adding air tubes directly into the pots (a bit like an "AirDome" system) can offer several advantages: Accelerated growth: An excess of oxygen at the root level stimulates the plant's metabolism. It absorbs nutrients faster. Disease prevention: Pathogenic fungi (like pythium) hate oxygen-rich environments. Drying of the substrate: Pulsed air will evaporate water faster. In coco, this is quite an advantage, as it allows you to water (and thus feed) more often without risking overwatering. Points to watch for on your 24th day Since you're following Grow Weed Easy's advice, keep an eye on these specific parameters for your setup: Localized drying: If the air output is too powerful and localized, it can create a "dead zone" where the coco is too dry for the roots to develop. Make sure the air diffuses well. Air temperature: If the pumped air is too hot (coming from the top of the tent or the pump motor), it can stress the roots. Ideally, the root zone should be between 18°C and 22°C. pH fluctuations: The massive influx of oxygen can sometimes slightly vary the pH of the residual solution in the pot. Continue your rigorous monitoring. Visual result In your photos, your plants look great for day 24. The structure is compact and the leaves are nice and green. Using fabric pots (geotextile) combined with your air system creates an extremely oxygenated environment. Note on bag seeds: Since the origin is unknown, watch closely for the first signs of sex (around the transition to 12/12) to eliminate males or any potential hermaphrodite tendencies. Have a great day!
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