Shawnery said:

Transplanted new clones into RDWC system a few days ago. Today I noticed a few leaves with small brown spots. Otherwise the plants seem to be doing well with lots of new growth.

RDWC system
Samsung f564b lights
AN Sensi Bloom PH Perfect
RO water
PH 6.3 AN says this is fine with their ph perfect
EC 800
PPM 400
Day temp 75
Night temp 60
Water temp 67

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Shawnery said:

Transplanted new clones into RDWC system a few days ago. Today I noticed a few leaves with small brown spots. Otherwise the plants seem to be doing well with lots of new growth.

RDWC system
Samsung f564b lights
AN Sensi Bloom PH Perfect
RO water
PH 6.3 AN says this is fine with their ph perfect
EC 800
PPM 400
Day temp 75
Night temp 60
Water temp 67

Click to expand...

Shawnery said:

Not touching ph as is stated when using AN nutes. I've been told anything below 8 is fine.

EC is .8 ppm is 400

It calls for 1ml per liter at start and then to move up to 4ml per liter add 1ml per week. Thats per bottle per instructions. With the newer ph perfect AN line you use all three Micro, Grow and Bloom at the same rate for the whole grow. Atleast this is per directions on bottle and on site.

Right now I'm just slightly over 1ml per liter.

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Shawnery said:

8oo EC

400 ppm

Doesn't look like calmag to me or atleast not like the deficiency I had last grow. Last calmag issue I had looked more like acne. Last time lost of little spots no bigger than a pin prick. This time each spot is almost the size of an eraser.

I'll take some photos tomorrow.

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Shawnery said:

Along with 1/4 strength AN 3 part ph perfect I'm also adding 1/4 strength calmag. My understanding is you don't need it but it won't hurt.

How old are they? Not sure, 6 to 7 nodes, my fourth day.

Spots on big fan leaves? Yes

At bottom or top? All over but only a single leaf per plant and only half of them have it.

Any other deformities? Same leaf as spot has some fingers turning out but not twisting.

Water temp? 67 to 68 regulated by room temp.

At middle of nite water temp? Not sure but I assume around 60. There's an 8 degree swing in room temps so I assume that holds true at night. I'm picking up a heater tomorrow though so no more swings.

U build your system? Yes

How much air you pushing? 2 commercial air pumps at a total of 180L/min for 9 outlets.

And them pics..

Included is a diagram of my system so you get a better idea. Using completely inert aquarium bio balls for the medium. Had a tough time with my ph on the first grow and I attributed to the hydroton. From some research I've done it seems the quality of hydroton has seemed to decline?

Each bucket has an air stone and a 180 degree sprayer. Water level at bottom of net with bubbles and sprayer indirectly watering roots. I just noticed the water was a little high so there may have been some over watering. 5" net cups with a layer of medium underneath the 2" rockwool cube and covering it with lids over that.

I just noticed some very small sections of pm and I've been treating it yesterday and today with water and Apple cider vinegar. Neem spray will be here on Monday.

I shared some grow room photos to give you a better all around understanding of the environment.

These are the only leaves out of eight plants there are only 4. What appears to be nut burn on the tips of some leaves where there when I got them.

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Shawnery said:

Recirculating is done by a pump in the reservoir to the sprayers in the buckets. The return lines at the bottom supply the return.

How is the not an RDWC?

What is it missing to be recirculating?

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Shawnery said:

Water is touching the bottom of the net cup so bubbles supply rockwool and roots with water.

Roots aren't long enough to see yet. They were only about a couple inches long when I got them 5 days ago. How long should it take to see roots if everything is going good?

Checked them all and all buckets are within a percent of one another on all important factors.

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