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Brown crud in hydro

Murphski2
Murphski2started grow question 2 years ago
After 5 days away from home, this is what I found. Brownish matter clinging to probes and bottom of reservoir tank. Flowed in the current on the probe. It’s not slimy. Any ideas?
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Week 3
Other. Other
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Chow_13
Chow_13answered grow question 2 years ago
If its not smiley it's most likely a nutrient/mineral buildup. I use regular tap water and get that with general hydroponics. It would usually be white but the nutrients stain the buildup brown. Happy Growing
MrNObody_Grows
MrNObody_Growsanswered grow question 2 years ago
If temps are in check and now slime or smell then it’s just nutrient build up. If it smells really bad then you got root rot starting up.
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