moguy
- 14
- 3
What do you mean exactly when you say you're doing a flush with RO water in week 5 flower RDWC?
That should never be a thing that happens.
My guess is the FF trio was too high in P and locked out your Ca and then started cascade effect locking other things up. More than likely, using too much P was the problem to begin with.
But to answer the question, I think it's a terrible idea to try and use organics in RDWC.
View attachment 971646
I have just been following the ff feeding schedule and it calls for a flush every couple of weeks. Is it the flush or the RO water that you don't like (or both). And thanks for your reply. As far as adding the nutrients, i have never been at 100 percent of the recommendations normally 50 percent to 75 percent (lately). I look at the feeding charts and it says my ppms should be over 1500 but mine has always been much lower (500 to 750) and i know they push more is better but even the one time i tried full amounts it has never approached their ppm numbers.
What This says... The closest most will go is Pure Blend Pro... I have never had a successful organic Dro Grow except in CoCo...Organics in DWC equals dead plants if you don't know your shit.
Add to what @Dirtbag said the huge ph swings.
What do the roots look like? I would be concerned about that right now.
What is your source water and everything you are adding to it?
What are you using for ph control?
How often are you changing the water?
View attachment 971646
I have just been following the ff feeding schedule and it calls for a flush every couple of weeks. Is it the flush or the RO water that you don't like (or both). And thanks for your reply. As far as adding the nutrients, i have never been at 100 percent of the recommendations normally 50 percent to 75 percent (lately). I look at the feeding charts and it says my ppms should be over 1500 but mine has always been much lower (500 to 750) and i know they push more is better but even the one time i tried full amounts it has never approached their ppm numbers.
I have been using ro water with nutrients added. I use ph up and ph down for adjustments. I use ff big 3 according g to their feeding g schedule at about 75 percent now. I add calmag 1/2 tsp per gallon.. I add hydroguard 1/2 tsp per gallon.Organics in DWC equals dead plants if you don't know your shit.
Add to what @Dirtbag said the huge ph swings.
What do the roots look like? I would be concerned about that right now.
What is your source water and everything you are adding to it?
What are you using for ph control?
How often are you changing the water?
So cut back on the ff nutrients some to reduce phosphorus annd use calmag full dose?That is a Ca lockout/def. Exactly like @Dirtbag said. Spot on advice he gave ya.
You definitely have deficiency issues but I don't feel its a lack of issue I think it's as @Dirtbag said a lockout issue. And the reason is nutrient imbalance again as he said.I have been using ro water with nutrients added. I use ph up and ph down for adjustments. I use ff big 3 according g to their feeding g schedule at about 75 percent now. I add calmag 1/2 tsp per gallon.. I add hydroguard 1/2 tsp per gallon.
I change out the water once a week.
I have not looked at the roots for a few weeks now since the plant is so big and there are 2 sets of netting in the plant. The plant is in a 5 gal bucket. I have an airstone in the bucket and an bubble up to a drip ring. The water does not smell bad or anything.
All seemed ok until the flowering got heavy and then the very top fan leaves started getting brown spots and the leaves eventually brown a lot and curl and die. The buds seem ok so far.
This is week 5 of flowering but it was from a clone and had 2 full months of veg.
So cut back on the ff nutrients some to reduce phosphorus annd use calmag full dose?
Yeah it depends on lot of factors. But I agree less is more. 600 is a good number of you have your environment dialed in.Best tip for DWC. Underfeed. You will see infinitely better results underfeeding for 75% of the grow. The plant below was given a base solution at 350ppm.
RO water
Micro 1ml/L (drop to 0.5ml/L in flower)
Bloom 1 ml/L
supplemented fulvic, kelp, silica and amino acids.
I never go above 350ppm for the first 8 weeks, never.
Not sure if your referring to me. If so it's an HLG 600.What light are u using btw? Nice set up man!
Lol yeah I was talking to u, nice man! I'm running hlg as well, killer products.. wrking on this little rig rn, just waiting for my other driver to come in the mail before I throw this b* in the 2x4 auto tent. This was just a mock up to check ppfd. Today I'm doing the exact opposite of what's in the pic, sandwiching the 2 qb288 with a 96elite on each end. Inventronics EUC-320S490DT for the 2 96 elite, and I'm still on the fence weather to use mw150-54b on each qb288 or run the mw240c 2100a and run in series, or say f it and run the 320hc2800a on the 2qb and melt the walls off the 2x4Not sure if your referring to me. If so it's an HLG 600.
Nice I think you will like the lights. The only thing I would change and still might is to cut the heatsink in 2 and get better coverage on my lightLol yeah I was talking to u, nice man! I'm running hlg as well, killer products.. wrking on this little rig rn, just waiting for my other driver to come in the mail before I throw this b* in the 2x4 auto tent. This was just a mock up to check ppfd. Today I'm doing the exact opposite of what's in the pic, sandwiching the 2 qb288 with a 96elite on each end. Inventronics EUC-320S490DT for the 2 96 elite, and I'm still on the fence weather to use mw150-54b on each qb288 or run the mw240c 2100a and run in series, or say f it and run the 320hc2800a on the 2qb and melt the walls off the 2x4anyways any feedback is welcome.ive been looking for a place to post a thread for advice. But I ended up here lol ttyl man keep on Killin it..
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