Please Help. Dwc and Ebb and Flow

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Djsbooboo

Active Member
Please help?????? I got all the books did all the googling. I want to talk to real people doing same as I am. I get results will vary.
3 week old seedlings.
Dwc 17 gallon rez with 3 inch pots.
Roots are reaching for water aerated with a heavy duty air pump. Roots are white and earthy smelling.
Res temps 68-70°. Inside temps are 70-75°.
Ph for DWC is 5.7. Ph for ebb and flow is 5.7.
Ppm for dwc is 435. Starting water 350 ppm.
Nutrients GHE Florgrow, bloom, and micro.
Used equal parts of all three in both dwc and ebb and flow.
Ph just stabilized and stays very consistent.
I also use hydroguard all of the time. 16108282830494790891901613890443.jpg16108283757439124452766080532081.jpg16108284197139031223520016172775.jpg16108284622451866908194372800133.jpg16108285157433132146030125044200.jpg
 
Johiem

Johiem

Well-Known Member
Little heavy on the nutes personally. I keep mine low though, paranoid about burning my babies. I don't hit 400 ppm till I start LST (about 4 weeks). Something I just noticed, your lid, it's yellow. Yellow does not block the passage of light. You are putting yellow light directly into your root zone. This is hampering root development. Thick, dark duck tape will do the trick. I advise either aluminum ducting tape, or the silver reflective version offered by Duck brand. just possibilities, you could also paint the lid.
 

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Larry3215

Well-Known Member
Can you take some pics with the purple lights turned off? Just use your camera flash. Its hard to judge anything with that lighting.

If your tap water starts at 350, then your only adding less than 100 PPM of nutes. Id suspect your tap water as the problem.

Can you get a water report for your water?

Do you have an RO system so you can try some RO to see if that helps? Or maybe buy some big jugs of purified or RO water for a test?

Everything else you listed sounds just fine to me.

Oh - how far above the water are the bottoms of the net pots? You want maybe 1/2" to 1"

You can also just use aluminum foil on the lids. Doesnt have to be glued down. It will form nicely and tuck under the rim. Just over lap enough so no light gets through.
 
Failmore

Failmore

Well-Known Member
350ppm starting water is hi.. that is hard water.

You should be feeding 400ppm minimum atm. And you are only feeding about 100.

Need to get that starting tds under 150.

Mix your water with distilled or get a filter.
 
D

Djsbooboo

Active Member
Johiem said:
Little heavy on the nutes personally. I keep mine low though, paranoid about burning my babies. I don't hit 400 ppm till I start LST (about 4 weeks). Something I just noticed, your lid, it's yellow. Yellow does not block the passage of light. You are putting yellow light directly into your root zone. This is hampering root development. Thick, dark duck tape will do the trick. I advise either aluminum ducting tape, or the silver reflective version offered by Duck brand. just possibilities, you could also paint the lid.
Click to expand...
Holy shit i didnt think anyone responded. Thanks for response. I'll get the tape right away.
 
D

Djsbooboo

Active Member
Larry3215 said:
Can you take some pics with the purple lights turned off? Just use your camera flash. Its hard to judge anything with that lighting.

If your tap water starts at 350, then your only adding less than 100 PPM of nutes. Id suspect your tap water as the problem.

Can you get a water report for your water?

Do you have an RO system so you can try some RO to see if that helps? Or maybe buy some big jugs of purified or RO water for a test?

Everything else you listed sounds just fine to me.

Oh - how far above the water are the bottoms of the net pots? You want maybe 1/2" to 1"

You can also just use aluminum foil on the lids. Doesnt have to be glued down. It will form nicely and tuck under the rim. Just over lap enough so no light gets through.
No RO system. Guess I could get distilled water. So do you think the problem is under fed? I failed to realize im only actually giving them 100 ppm's of the juice. I let some water sit out and bubble and it was 288 ppm and I added enough notes to get it to 437.
So on all the charts for feeding are they starting from a 0 ppm water? So 300-400 ppm's would be what I add exclusively?
That last two are in ebb and flow and the ppm is 531.
Would the ghe notes for hard water be beneficial or waste of money?
thanks for response.
16110306721819089614032207791691.jpg16110307804298826340678352813710.jpg16110308175085502206601231653075.jpg16110308758852680388710366510444.jpg16110309857483953843681054589941.jpg
Click to expand...
 
Johiem

Johiem

Well-Known Member
Re-reading the post I see that you're fine on the added nutrients, your starting water needs improvement. As @Failmore said earlier, 350 is hard water. Do you aerate the chlorine out? I actually use rainwater in my DWC. It falls of my roof at ~43ppm. Which is close enough to pure for me. My girls don't seem to mind it.

It might take a bit for the right person to find your thread/ post/ question, but I've never had 0 replies. Most of us here, are here to help our fellow growers avoid the pitfalls we ourselves have found. So ask away.
 
D

Djsbooboo

Active Member
Johiem said:
Re-reading the post I see that you're fine on the added nutrients, your starting water needs improvement. As @Failmore said earlier, 350 is hard water. Do you aerate the chlorine out? I actually use rainwater in my DWC. It falls of my roof at ~43ppm. Which is close enough to pure for me. My girls don't seem to mind it.

It might take a bit for the right person to find your thread/ post/ question, but I've never had 0 replies. Most of us here, are here to help our fellow growers avoid the pitfalls we ourselves have found. So ask away.
Yes, I let sit with air stone for 24 hours got it down to 288 ppm. I only used enough of the gh flora series to get the ppm's to 437. So really only 149 ppm's of what I want them to have.
Just trying to figure out if im buting them or not feeding enough. I dont feel like after 3 weeks they are growing as fast as they should.
Click to expand...
 
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Larry3215

Well-Known Member
They dont look under fed to me. I see signs of nute imbalance or lock out or something, but that is likely your tap water as a guess.

Based on everything you have told us, I cant think of anything else.
 
D

Djsbooboo

Active Member
Larry3215 said:
They dont look under fed to me. I see signs of nute imbalance or lock out or something, but that is likely your tap water as a guess.

Based on everything you have told us, I cant think of anything else.
Click to expand...
Any ideas on what kind of r/o set up i should look into? I cant afford it but I also can't afford to lose these plants.
 
gwhunran

gwhunran

Well-Known Member
I use a flood and drain system and have had 7 truly successful grows as far as I am concerned. I can do a couple of crops and have it last a couple years.
I may start speaking heresy now so guys please don't get too offended. I worried too much my first couple of times and tried to control everything. About my third grow, I kept it basic. I already have pretty good light, ventilation, fans, ac in the flower space etc.
My tap water is around 8 plus on the ph, never had a good tds meter, mine was all over the place. I found the sweet spot on ph down and it was a little a little acidic on res change but by the next day I was hitting around 6 and never got to 7 by the next res change. Week to week, consistently. I use GH 3 part and start lower than the chart and quickly hit the chart recommendations. I don't try and push it past the stated nutes per gallon. I stay out of the big girls room after lights out. All the strains I've tried have turned out fine. Critical Kush, White Widow, OG Kush, Jack Herer, Afghani 1, Durban. I don't chase my tail anymore. Most changes take a while to show.
 
D

Djsbooboo

Active Member
Failmore said:
350ppm starting water is hi.. that is hard water.

You should be feeding 400ppm minimum atm. And you are only feeding about 100.

Need to get that starting tds under 150.

Mix your water with distilled or get a filter.
Click to expand...
They just started day one of week 4. Have another 5 gallons of 27 ppm water.
Larry3215 said:
Can you take some pics with the purple lights turned off? Just use your camera flash. Its hard to judge anything with that lighting.

If your tap water starts at 350, then your only adding less than 100 PPM of nutes. Id suspect your tap water as the problem.

Can you get a water report for your water?

Do you have an RO system so you can try some RO to see if that helps? Or maybe buy some big jugs of purified or RO water for a test?

Everything else you listed sounds just fine to me.

Oh - how far above the water are the bottoms of the net pots? You want maybe 1/2" to 1"

You can also just use aluminum foil on the lids. Doesnt have to be glued down. It will form nicely and tuck under the rim. Just over lap enough so no light gets through.
Click to expand...
Did none of pics post?
 
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