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Extraction Fan & Carbon Filter Ducting Kit Odour Hydroponics Grow Tents Smell

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Seedlings bleaching

Hello. Recenlty I set up a small RDWC system with some autos, and this keeps happening.

I'm running plain water, no nutes, pH and ppm seem acceptable, it's spring over here so temps should be OK too. Maybe light excess? It's a 4x4 foot tent with two 300w COB panels, pink light. Ventilation is also fine, good intraction/extraction.

My best bet is light bleaching but I don't know, panels were like 40cm from seedlings.


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