Brown Residue In Res

19gal DWC hydroponic system using GH Flora Grow and Micro at 170 ppms res temp is 80 and just filled up two days ago just added nutes yesterday then this brown residue came about today when i checked them out anyone know what this is? Thanks Jblaze28

I cleaned the hydroton rocks as best as i could about an hour of straight water then added a bit of h202 to the water washed it several times after that and my PH Levels are 5.5 never higher then 6.5 never lower then 5.5

res temp needs to be lower, it should be around 70-72 to keep bacteria from growing. also check for any light leaks, invest in some black tubing from the pet store, and if the brown stuff is above the water on the sides it maybe just nutrient stain- just wipe it off when you do water changes. hope this helps, all this came from searching around here

thanks afrogrow and its on the sides and bottom of the net pots and roots and on my tubes its slimy looking and just wrong im doing a res change tmrw wifes mother get remarried out of the blue today so didn't have the time defo will tmrw though

Just Cleaned the res with a very light bleach/water treatment also added a few ML of h2o2 and scrubbed and scrubbed and rinsed and rinsed. I then added 1ml of h202 to a deep bowl of water and dumped my roots/net pots into the treatment and cleaned the brown residue off the roots I then sprayed the roots lightly with the faucet spray. I'm going to let the roots sit over night and dry out a bit as i soaked them with all the cleaning I will add new water first thing in the AM and top it off with 50ml of hygrozyme to kill of any still existing bacteria. I started freezing about 8 bottles of water to try and maintain the temps in my rez thanks for the help afro will let you know how things are looking in a few days good health and growing to you my friend peace Jblaze