Hindu Skunk (pot of gold) moms looking slightly yellow and mottled.

[simpleword]

Hey guys, picked up some hindu skunk clones a week and a half ago and selected the best three to grow out as moms. I am growing them in an small cab of my own design. They are in a mini homemade dwc tub. I know lots of people say to not grow mother's in hydro but I have a theory for hydro bonsai mom's that I want to try out.

They are growing vigorously but have had some slight yellowing and mottling on some of the leaves. I've tested various strengths of nutrient solutions, that doesn't seem to affect them. The ph is 5.8, PPMs are at 350, and water temp is at 66f. The only thing I can think of right now is that the room they are in is too cool. It is in the low sixties in the room, and under 70f in the cab.

Regardless of what is wrong they are growing ridiculously fast and the roots are coming in like mad.

I took two pics, one under flash, and one under the CFLs. Just so you guys can see under different lighting conditions.

 

[stinkyattic]

That does seem a bit on the cool side.
Your tub- from that pic, am I imagining that it is not lightproof? It should be.
What is your water source, and what are you running for nutes? Are you running a calmag supplement if you are not in city water that you have tested and determined to be aceptable with your nutrient regime?
300ppm is on the low side now that you have root growth... time to up the dose. The ladies are hungry.

 

[simpleword]

The tub they are in is definitely light proof. In the second pic, they are in the backup tub which is clear, but that is just used for a few minutes when I replace water and nutrients in the actual tub that is lightproof (top pic). It doesn't even have water in it.

I live at the base of a volcano so our water is filtered for years and years before it reaches our town, my well water at my old house was under 70ppm and my city water here is completely untreated and at less than 20ppm.

I am running GH 3 part with liquid karma. I may add some more nutes in a day or too if things don't look better. And maybe add a small space heater.

Thanks much.

One other question, do you guys think I'll be able to cut nine clones off these girls in this space? I have another 20 inches vertically to work with.

 

[simpleword]

Some more pics under better light.

 

[whatsthatsmell]

Actually your temps are fine, you dont want the temp to get below 55F, at that point the plant will not use the nutes effectively. When your growing in DWC you dont want your ppm's to be too high, so be very careful in how much you raise your nutes all at one time. Keep a close eye on your root ball and make sure that your not getting root rot, this can happen easily, especially if you raise the temp of the water to be above 72F. Ideally, i would run with the Lucas formula in a DWC, its really easy to keep the ppm's correct alone with your pH correct. This is just a personal preference that i have found to work really well in a DWC. Also think about putting in a zyme, something like hygrozyme or hydrozme and also some Super Oxy to your water, this will help with the roots. Another thing that works well in DWC for roots is Dr. Hornby's Trantrila (sp?). This is a benefical bacteria that will target the root zone, works really well (just my opinion tho).

Over all your plants are doing fine, just a little nute def but you have raise the ppm's and you should see them bounce back over the next few days. I personally dont like to have my young guns like that to be over 700ppm in a dwc, as they get older you could raise that to about 900-1100ppm, but you have to watch that root ball very carefully when you get to a higher ppm.

Hope that helps ya some.

 

[MynameStitch]

Hey stinky!! Hey thanks for the guestbook gal, that was very very sweet of ya!!!
Everyone here has pretty much nailed the problem down!
It is in the low sixties in the room, and under 70f in the cab.

When plants are in colder temps they don't use as much food, water temps you should not go under 60F if all possible.

and not over 70F

Temps need to come up, your ppms need uppped; they need more micronutrients there is various problems showing now.
You using tap water? Ro?
What nutrients are you using?

 

[simpleword]

Thanks guys, the ppms have been upped to around 650.

Stitch, I'm using tap water but like i said above we have very very pure tap water at 20ppm and ph of exactly 7.0. I'm using gh 3 part, liquid karma, and dyna-gro protekt (silicon solution).

Thanks again!

 

[MynameStitch]

Well, that just shows you can have a zinc deficiency in hydro, cause that is what it was showing in the middle of the plant, good thing you upped it.You are very lucky to have such clean water.

Show us some updates soon alright m8