Plz heeelp :'(

happygogreen

happygogreen

Active Member
I run DWC. My first time running RO water. I use Cal-mag to bring ppm to 150-200. Then use Sensi grow to bring it up to 600. Ph is 5.8. Plants are just at 3 wks and noticed roots are turning brown and tips of te leaves are pointing up and some down.. Temp is running a lil high around 85 but I don't think this is the problem because previous grows have been same temp wth no problem with the roots or leaves with well water.. Any advice would be greatly appreciated!!! :))))
 
ChainSmoking

ChainSmoking

Well-Known Member
Yeah, post up some pictures. With your roots, try adding Peroxide or H202. They might just be the nutes staining ur roots.
However, I had temp problems at 80, so 85 will give you definite problems. Also Calcium is not absorbed into the plant until a PH of 6.0ish.
Whats your water flo looking like? How close is your light? Do you have a reflective material off of the top of ur Aero unit? Are you adding anything to chill?
Your running your PH in a shitty manner imo. Add nutes by how many gallons ur using, not by what ppm you need.

I hope you understand PPM meters are about worthless in accuracy. They are based off of an EC conversion that differs on your location.
 
happygogreen

happygogreen

Active Member
ChainSmoking said:
Yeah, post up some pictures. With your roots, try adding Peroxide or H202. They might just be the nutes staining ur roots.
However, I had temp problems at 80, so 85 will give you definite problems. Also Calcium is not absorbed into the plant until a PH of 6.0ish.
Whats your water flo looking like? How close is your light? Do you have a reflective material off of the top of ur Aero unit? Are you adding anything to chill?
Your running your PH in a shitty manner imo. Add nutes by how many gallons ur using, not by what ppm you need.

I hope you understand PPM meters are about worthless in accuracy. They are based off of an EC conversion that differs on your location.
Click to expand...
ChainSmoking said:
Yeah, post up some pictures. With your roots, try adding Peroxide or H202. They might just be the nutes staining ur roots.
However, I had temp problems at 80, so 85 will give you definite problems. Also Calcium is not absorbed into the plant until a PH of 6.0ish.
Whats your water flo looking like? How close is your light? Do you have a reflective material off of the top of ur Aero unit? Are you adding anything to chill?
Your running your PH in a shitty manner imo. Add nutes by how many gallons ur using, not by what

I thought ph was suppose to run 5.5-5.8. Water flo is slow. It's buckets. I have T5 8 bulbs per 4 plants about 6 inches away. I have been adding nutes per 5 gallon buckets; 2tsp cal-mag, 35mL Sensi grow a&b, couple drops of H202. No chiller. Should I be using 20oz water bottles frozen in each bucket to help?
Click to expand...
 
ChainSmoking

ChainSmoking

Well-Known Member
PH if you want to be anal 5.8-6.2 is where the most absorption of nutes will take place.

Yes freeze and put in.
Back your light off a bit,
get covers that radiate heat back away and ur water temps will get colder.
 
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