First Grow advice , DWC, Big Bang from seed. Tell me what you think!

Hi everyone,
i'm new to growing. This is my first grow. I decided to go DWC.
Growing from seed.
Strain is Big Bang from Greenhouse Seeds, feminized.
5 gallon buckets with 3 gallons water in them.
Day 39 from seed.
Nutes- Ionic range, Ionic Grow at the mo. 5ml Liquid Oxygen each bucket every other day. Roots are white and healthy.
EC-1.5 for the larger ones
1.0 for the smaller
PH-6.0 ( I adjust pH to 5.5 when i change res. and in few hours is up to 6.0
and it stays there so i leave it at 6.0). Should i re-adjust to say 5.8?
Room temp is 72/78 F
RH is 30%-45%
Light is 2X55W Cuttings light, 3"-4" above the plants. The retailer told me equals 400 MH so i havent switched the 600W Dual spectrum HPS on yet. Should i use the HPS instead?
CO2 is homemade, sugar + yeast though i'm not sure if i need it with CFLs.
The 2 large girls are 7" tall and i just topped one of them off, the other one is due tomorrow or the day after.
I think they are kind of small for 39 days old or am i mistaken? Has anyone grown this strain here that could give me an opinion? Are the fan leaves too big? I think
my plants are struggling with transpiration and they look really tired and droopy just before "night"; running 18/6. When the day starts again the are as you see them on the pictures. Should i worry?
I'm leaning towards a ScrOG at the mo. Anyone done that with Big Bang?
Too many Q? Thank you in advance!

Well, that's one busy forum!

Looking good. I wouldnt worry about your PH at 6.0 it's pretty much perfect just keep an eye on it. They are about the right size for using the lights that you are. If you want them to get bigger faster then put your 600w in there, they'll definatly take off! How do the roots look and have you got plenty of air pumpin in the water?

5.8 is perfect for PH but 6.0 isnt too far off. Plants look perfect. I dont think you need co2 until you put them in bloom.

chilledreaper said:

Looking good. I wouldnt worry about your PH at 6.0 it's pretty much perfect just keep an eye on it. They are about the right size for using the lights that you are. If you want them to get bigger faster then put your 600w in there, they'll definatly take off! How do the roots look and have you got plenty of air pumpin in the water?

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The roots look good, white. Sometimes a little brown something apears...like plants are sh###ing in the bucket but Liquid Oxygen every other day solves it. Water level is about 2"-3" from the bottom of the net pots, i'm running 6W dual output air pump in each bucket with
2 x 6" air stones, so airflow inside is good. Water temp is about 70F. However about 4 days now my plants are a little droopy towards the night cycle and the first couple of hours in the day cycle. Then they freshen up a bit, but not quite perky. I'm trying to solve
this now but without success so far. All other readings are within the norm. The new fan leaves are a little dry on touch and i think do not look as good as i like (see pics). Could this be side effect from topping them off? Might be they are still recovering from the shock?
Although the new growth on the stem seems all right...it just the top new fan leaves. I have my fan blowing straight at that area...could be this....i'm doing fine tunning at the mo...don't know where is this gonna take me! Any advise?
The pics are from today, Day 43 from seed. Were taken just after the lights tuned on!
Thank you!

BeaverHuntr said:

5.8 is perfect for PH but 6.0 isnt too far off. Plants look perfect. I dont think you need co2 until you put them in bloom.

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Hi and thank you for your input! I've taken out the CO2 as i have a little problem now and i'm trying to solve it step by step by eliminating possibilities. Please see my new pics
and tell me what you think!
Regards

hey was wondering could i take my clones from the cloner to dwc just by placing the cutting when rooted directly into the hydroton???

str8ballin said:

hey was wondering could i take my clones from the cloner to dwc just by placing the cutting when rooted directly into the hydroton???

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As long as there is roots you can just compact tightly so it doesnt tip over ..

nevermind! i got it! all fixed now.

You mind posting an update on how your grow came out.