DP Blackberry Kush DWC Day 13 Help Please

[Cruciality88x]

So this is my first attempt at Hydro, this is my 2nd grow in total. I'm not quite sure what's going on, I'll just fill in the information and share pictures and see what you guys think. Also seemed a little stunted for growth, started germ on 18th of November, finished on 20th, sprouted from rockwool 22nd.



2X2X4 Grow Tent
DWC w/ Hydroton and Rockwool Cube
Viparspectra 300W LED (Not sure actual Watts) 24 Hours On 15" above canopy
General Hydroponics Flora Trio Nutrients (Started 1 week after sprout @ 1/4 strength) about 200PPM
Calimagic & Hydroguard (1/4 strength for now as well)
Have been top feeding twice daily until roots are reaching water level
Roots just starting to hit water, look beautiful and healthy
Water PH'd from 5.5 to 6.5 usually between 69-73 degrees
Temp 75-85 & Humidity roughly 50%
About to add a fan

UPDATE: So after receiving all the great information from everyone from several forums here is my plan over the next week.
Immediately back off the light 4-5" until I start to notice stretching then slowly come back to the sweet spot.
Add full strength Hydroguard, back off Calmag a bit, up nutes a bit next reservoir change, probably within next 24 hours.
Keep PH closer to 5.5-6.2.
Middle of next week I should have a 1000GPH air pump compared to my 25GPH currently.
Also going to stop top feeding it now that the roots have come out the bottom of the net pot.

 

[woody]

Hey @Cruciality88x bud ive done a couple dwc grows so i'll try an help.
6.5 is on the high side for ph.
Aim for a ph of 6.0 a little fluctuation either way is ok but over 6.2 you'll start to lock certain nutes out.
Saying that the new growth is looking healthy.
You got a journal going bud?

 

[Cruciality88x]

Hey @Cruciality88x bud ive done a couple dwc grows so i'll try an help.
6.5 is on the high side for ph.
Aim for a ph of 6.0 a little fluctuation either way is ok but over 6.2 you'll start to lock certain nutes out.
Saying that the new growth is looking healthy.
You got a journal going bud?

Will do, thanks for the info. I have a small journal going on here offline thats about it. Others on another site have suggested that my air pump may be a little light for the job. Got it at Wal-Mart for about $10-$15 they say it's like a 25/GPH.

 

[Kingflipper]

Will do, thanks for the info. I have a small journal going on here offline thats about it. Others on another site have suggested that my air pump may be a little light for the job. Got it at Wal-Mart for about $10-$15 they say it's like a 25/GPH.

I was about to suggest just that... Get some more bubbles going! and lower the pH like @sanguine mentioned

 

[Waira]

...yeah, might have been a sudden pH drift,... everything happens faster in hydro! As mentioned, new growth looks good, a positive sign....