☻Help Me Save My Plants☻ *MaSSivE pIc ALBum

Originally Posted by Sexxxy Beast

Hey guys, first grow here...

I am using Deep Water Culture tanks with 2 air stones each 18 gal.

Left tank is filled until half way up the net pots. PH is 5.7 ppm is 850 (200ppm hard water). I am using GH nutrients for hard water.

Right tank is filled until an inch above the net pot bottom. Its PH is at 6.1 and ppm is 500 (200 hard water). Using same nutrients.

The room is setup as follows, 6oow sealed HPS lamp, 6in exhaust. Temps from 65-80f, Humidity of 30.

Plants are:
The Hog
Headband
Blue Dream
Grand Daddy Purple

The photos are in order by date taken from 3 weeks ago until today, the latest photos with the larger green plants were purchased 3 days ago.

They look a little over watered and over nuted.

Start by lowering your water levels. You should have a 2 inch or so airspace between the bottom of the pots and the water level.

Originally Posted by cjishigh

They look a little over watered and over nuted.

Originally Posted by cowboylogic

Start by lowering your water levels. You should have a 2 inch or so airspace between the bottom of the pots and tdhe water level.

Thanks for the replies guys, I am going to reduce the water level of my tank right now, Also are both tanks over nuted or only one? What level do you recommend?

18 gal totes usually use about 7 gals of water to maintain a proper level. But to be sure just have about a 2 inch space between the water level and the bottom of the net pots. The bubbles from the airstones will keep the hydroton nicely moist even with the air space. As for as the nute issue goes. Maybe just give the system some phed water for a few days at the proper level then go from there. It is way easier to recover from under feeding than over feeding.

And I just noticed your pong cups are clear blue. The roots may have gotta a bit light pruned. Clear cups are a good idea so you can watch the roots grow. But always put the clear cup inside of another cup that is not clear. Keeps the light away from the roots. Then all you have to do is lift the inner cup to check on root growth.

Originally Posted by cowboylogic

And I just noticed your pong cups are clear blue. The roots may have gotta a bit light pruned. Clear cups are a good idea so you can watch the roots grow. But always put the clear cup inside of another cup that is not clear. Keeps the light away from the roots. Then all you have to do is lift the inner cup to check on root growth.

The roots look very healthy in the cup, it is gone down to the bottom and has started filling the bottom of the cup, but it isnt growing up, just down!

The General Hydroponics website http://www.generalhydroponics.com/calculator/index.html states my ppm should be 880 for mild growth. Should I use their recommendation or should I be at a different PPM?

You also might want to move the air pumps out from under the lights, the hot air might be making your rez temp high. What is your water temp at?

Originally Posted by wrocks

You also might want to move the air pumps out from under the lights, the hot air might be making your rez temp high. What is your water temp at?

I dont have a precise reading but its defiantly cooler then room temp. best guess would be in the 60- 70's