shit is this realy could be of to little oxygen ? im runing my ventilation very very slow because it suck out the humidyti,but my room is quite big, could they use that air that quick. fuc... never thougt of that, could they stop growin of lack of air? thanks alot
Yes, even though a plant does breath through its leafs, it also needs a lot of oxygen to its roots. I think your plant is suffering from oxygen deprivation to the roots (and if it is the case lucky for you its a easy fix). From what I can see in your pictures, your potting media seems to be better suited for vegetables that require a lot of water because of the fruit they bare. Seems to hold lots of water but leave little space for oxygen to the roots.
I have a suggestion that may just save your plants, and just might have them explode in growth, if your interested. Plus it wont cost you more than $10 to implement it. What you will need is a cheap aquarium air pump ($5) Airstone (about $1.50) and air hose (around $3 for about 10ft which is more than enough) which can all be purchased in any pet shop. You will also need one of those inexpensive white Styrofoam ice boxes (I found one for about $3 which isnt the cheapest but it does the job very nicely). We will also need a small tub but I am assuming you may have one of those lying around (Im using the bottom half of my Hydrofarm Seedling tray, a Tupperware container will work too as long as its about 2 inches deep and can hold about a gallon of water)
With that in hand this is the plan, you are going to transplant one of your plants. And see if this helps.
Take one plant VERY CAREFULLY out of the pot you are raising it in, rinse the rocks out of the root ball by rinsing the roots in a tub of ph adjusted water. Take your time with this, light to the roots is not as bad as ripping out lots of life giving roots from your plant.
Next take the lid of your ice box and cut a hole big enough to carefully string through your roots, cut a plug near the size of your hole and while holding your roots below the hole carefully push the plug snuggly into the hole, holding the plant above the foam sheet (for lack of better words). Now fill your tub with ph adjusted water and place your airstone DIRECTLY underneath where you will be floating your plant. Turn on pump, drop your floating plant in and BAM! Instant bubble-ponic type system, cheap too!
Your plants will be floating on nothing but water and oxygen (and any nutrients you give them of course). I have seen plants in a setup like this grow as much as 3 inches a day!
The Pros of this system is that it promotes rapid root growth which translates to rapid plant growth. Plus you wont get nearly as much buildup of salts, thanks to no media or surface near the roots to collect salts, so you wont need to flush. Cons are that you need to change the water from your tub every 2 to 3 days (wouldnt let it get past 4 days without changing) and you will need to test your ppm and ph
at least once a day if you dont already do that. Other than that it works awesome!
You can still grow them in your drip system but I personally would use Hydroton in your pots, the gaps in between rocks are bigger and allow for air to flow in between your root structures better. You can even use the floating method in conjunction with your drip system. Raise them on your float system and wait till they are about 4 inches tall before removing them from your floating grow system, then move them back to your drip system with Hydroton. Works for me, very very well!
Going through 80 seeds and experimenting on all kinds of stuff I have run the gamut of plant problems and learned a lot through my mistakes. One thing I learned was that over watering is such a big problem because of the LACK of oxygen in most water. Make sure air gets to those roots and you will be fine.
Hope this wasnt to wordy or complicated to follow. Hope it helps too, love plants and wouldnt want them to die unnecessarily.
Goodluck and keep me posted. Thanks.