HELP! my 1st grow. criticism welcomed and encoraged

[Peelout]

grow room setup
2m long. 1.8m wide and 2.2m high
5m of 150mm black duct venting to outside threw carbon filter.
2 90mm intake pipes drawing air threw the floor with a copper piping in them with water running threw to keep intake temps around 14degrees calsius in the middle of the day
a 600w hdps light
1x30cm osculating fan
2x15cm fans 1 pointing in between light and plants and other is osculating onto the plants
growing medium is vegetable potting mix with a 6kg bag of coarse pumice shared between them to help drainage 16L pots
grow lush temperature controller (room stays between 24deg and 30deg celsius depending on outside temperatures and around 35-45% humidity)
was on 18/6 light cycle.till they were at 34cm tall then changed to 12/12 (3 days ago now)
have yellowing on the leaf tips and curling. have started working threw the 7 steps to remedy page to fix it. no luck so far. will hopfully sort it out soon tho

 

[Peelout]

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[Peelout]

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[Peelout]

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[Mr.furley]

Hello peel out and welcome to the forum, I can suggest a couple things
1 use a flash when you take a picture under your light it will remove the black lines,
2 we really liked pictures in natural light it really helps determine what's going on.

 

[Peelout]

Hi sorry about that. Can i take pictures with the lights off in there sleep time will it afect anything?

 

[Mr.furley]

I wouldn't get in the habit of interrupting the darkness. Can you just pull them out of your tent for a picture?

 

[Mr.furley]

Sorry all the pictures were slow to load or something. I see them now.

how do you water? How much do you water? How often?

 

[Peelout]

I water 2L every 2days genrully depending on how dry the soil feels sometimes every 3rd day. iv been doing the poke finger into soil upto the first nuckle test and seeing if it feels damp or not. Then draining exsess away after 5mins. The Water ph is about 6.9 after i add the nutrients. And i just mix the water ntrient mixture in a jug and slowly tip onto top of the pot

 

[Mr.furley]

Peelout I'd be curious about the drooping leaf, it is common to be a side effect of heat, wind, light, over or underwatering. What's your pot size?

 

[Peelout]

14L or 3.7gallon. depending on the mesurment you use

 

[Peelout]

some clearer photos for you

 

[Mr.furley]

Do you test your PH of the water you give and the water in the tray "runoff water" ?

 

[Peelout]

I check it going in but i never thaught to check the run off

 

[Mr.furley]

Ok I would start there, the next tome you water if you fall between 6. And 7. (soil right?) Ph Then you need to look at the next steps, About how much runoff do you have each watering?

 

[Peelout]

Yea soil. And about a cups worth a plant. With 2L going each plant

 

[Camk]

what soil is that your growing in?
seems to be an awful lot of uncomposted sticks and debris in it
when you water do you water untill you get runoff to about 20%
i use a 5 gal planter and give it 1 gallon of water when it is dry nutes every 2nd watering

 

[D.A.A.S.69]

Morning Peelout, yeah looks like you need to check your run-off real good next time you water like MrFurley says, looks like you might have a slight problem with it being off.

 

[Dutchman1]

PH and or over feeding. Some real dark green older growth on there that seems to have been corrected. Dont overfeed.

 

[Peelout]

Thanks guys. Yes it does have abit of uncomposted sticks. We dont realy get any of the soils or nutients that use do over in america?? Um i have just watered. 2L and .200 came out afte 5mins. So about 10% run off. It was at 7.9? How do i fix this? Am i best just put lower ph in when feeding or should i flush heaps of water threw?