14 days old - cfl - canna coco - help

Right so my plants have been growing ok and healthy until a couple of days ago when the leaves started to go yellowish.
I think this is nitrogen deficiency so I gave the nutes for the first time yesterday and they seem to have got a little worse an increased amount of yellow patches on the leaves.

I'm using canna coco A+B nutes
Coco coir
ph'd water
pc cfl grow case 85w
1 intake
1 extraction

At 14 days old thy should look twice that size!!

Well at night I close the pc case up temps build up even with fans on full to around 35 Celsius so im not sure if heat has stunted the growth?
Would appreciate some help first time grow.

adamlfc256 said:

Right so my plants have been growing ok and healthy until a couple of days ago when the leaves started to go yellowish.
I think this is nitrogen deficiency so I gave the nutes for the first time yesterday and they seem to have got a little worse an increased amount of yellow patches on the leaves.

I'm using canna coco A+B nutes
Coco coir
ph'd water
pc cfl grow case 85w
1 intake
1 extraction

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Could only think it's ur medium. what's the run off water PH??? they are a bit small for 14days especially if sprouted over 6-7 days ago. I've had seeds that took 9-10 days to sprout so yours wouldn't be too small for a 4days old sprouted plant especially when having issues.

https://www.rollitup.org/newbie-central/721368-update-my-lil-girl.html heres my CFL grow and shes only 4 days old... i have 2. 23 Watt cfl's on her and a regular fan blowing on medium strength on her the im not even using coco coir im using hyponex potting soil....

Well I havent used perlite which I will order tomorrow and replant, so the drainage isnt really good theres not much run off water and sometime none.

how often are you watering? if your over watering and there is no drainage at all that aint good..... i only spray a little bit of water on my girl once a day

giving her any calcium? Had to deal with that, I thought it was a calcium deficiency, but was toxicity instead, same issue, stunted growth. But in your case I would say it'a a calcium deficiency, coco is known for his. Try a TINY bit of calcium on your next water. Cal-mag is what I use. Molasses (my issue!) has calcium also, but it wont be able to break that down at this point so go with the cal-mag.