BioBizz Light Mix soil OK for seedlings?

P

pimpnitjc

Well-Known Member
Has anybody else been using this soil mix. A couple of my seedlings are getting burned tips it looks like and I have not fertilized them at all. I am not sure if it is the soil or not. They are almost 2 weeks old.

If the soil is not right should for them? Should I flush the soil? and I have them in 16 oz. cups so how much water oz of water should I run though them to flush them? thanks alot!!!
 
I have no Idea..I have been watering every 4-5 days. waiting until the cups were light by weight.
Or could it be that I just got a bad batch of seeds and then that would make the leaves do that?
 
pimpnitjc said:
I have no Idea..I have been watering every 4-5 days. waiting until the cups were light by weight
Click to expand...

I really doubt the problem is going to be solved by a flush. Bio-bizz is really great soil and the additives are all organic. Do you have any pictures? Is the yellowing spreading? How hot is your grow room? Do the cups have drainage holes? Hows your PH?
 
THe PH is the soil on my cheap PH meter is right below 8. But I have been putting 6.4PH water in the soil. I don't know why it is reading 8 in the soil. I use a Hanna PH meter to check the water before I put it in the soil.
 
It is the tips of the first two adult leaves, I have them under two t5 CFL's and then temp is 78-80 degrees.

I am guessing I just got a bad batch of Blueberry seeds because my one White widow seedling looks nice and green in the same soil.
 
Well I've never gotten a "bad batch" of seeds, if they are bad they usually just don't sprout or show problems very early on. Different strains are more sensitive, white widow is a pretty hardy strain but blueberry can be testy in less than optimum conditions. If the new growth is healthy and the yellowing is not spreading I would not be too worried. Make sure you are not under/over watering that is the most common error especially with small plants. Sounds like everything else is ok but its hard to say without looking at your set-up. Good luck bro keep us updated.
 
I will..Thanks alot for helping me. We will see if they pull through it. I am going to go ahead germinate 5 or 6 white widow seeds. I am wanting to get like 2 females and then take a bunch of clones and keep one as a mother plant in my mother box.
 
Here are some pics too. THe green one on the far right is the healthy white widow and the other ones are all blueberry.
 

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Do you have a fan circulating air in your room? They don't look too bad the pics are a bit blurry but it looks like new growth is developing fine which is a good sign. You have drainage holes in your cups?
 
It would be possible that the lights are too close for seedlings and that is what is burning your leaf tips.
 
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