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DWC : Roots going Brown?


TastyGoodness
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Hi All,

I'm currently running a DWC setup with one plant per tub. 30L per tub.

The roots in the main root ball are going brown but the new growth looks to be white..

Running :

Canna Flores A/B

Canna Cannazyme

Cyco Silcate

PH Down

I do :

- Weekly Water Changes, and rinse the res out at the same time

- Completely blacked out the tub, no light leaks.

- Water not too cold not too warm

- Flushed

- Rinsed roots under hose :P

- Increase air to tub, new air-stones, new pumps.

- Top feed set to once every 3 hours.

I can't seem to see why they are starting to turn brown, and could use some suggestions.

Any suggestions or help would be appreciated,

Thanks,

mero thank%20you.gif

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