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Brown slime in my nutrient

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Old 04-17-2012, 11:57 AM
ju1234 ju1234 is offline
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Join Date: Mar 2012
Posts: 19
Default Brown slime in my nutrient

First time Hydroponics, I created a flood and drain system with air stone pump and water pump in the reservoir. I planted transplant size several different vegs in 1 gallon containers. medium used is pea gravel in the bottom and then a layer of coir chips and a layer of lava rocks on top to keep coir from floating. The reservoir and tubing is light proof. The nutrient in the flood stage is not exposed to light because i flood it during the night. I run pump only once a day flooding the plants from bottom up, to below the rocks for 30 minutes. This is outdoors in north texas where the temperatures have already been in the mid to high eighties.

Two weeks later i notice brown slime on my tubing and container walls and the color of the nutrient is also brown. There is no green algae. No bad smell. Plants seem to be growing just fine. Different plants were put in at different size. So some are growing fast others slow. For example, tomatoes are flowering, zuchini is fruiting, others are various stages. Only a few lattice in this set up.

Now I know that water turned dark brown when i pre-soaked the coir in water. So, brown color may be ok. But the slime? Should I worry about it? Thanks for the help.

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