First Grow Ever, Hello every1! Advice welcomed.

I growing some Martian Mean Green and a strand called Julio, I never heard of it but that's what the girl said they were called, My setup is homemade, I guess it's considered DWC, correct me if I'm wrong. I have 7 plant vegging right now under 2 40w Cool Fluros. Fox Farm Grow Big nutes and added a little Cal MAg. I will switch to my 400 MH in a couple of days/weeks followed by the 400 HPS during flowering.

Those plugs look like Styrofoam what are they?





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Sure to grow 1.5" cubes http://www.suretogrow.com/hydroponic-grow-cubes

I have heard of those Sure to Grow Blocks . I am thinking of trying them my next grow . I am hoping to hear from someone who has already grown in the big blocks .

Holla Man 219 said:

Sure to grow 1.5" cubes http://www.suretogrow.com/hydroponic-grow-cubes

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Well thats new I have never heard of these very interesting cant wait to see how they work.

i wonder if light hitting the cubes risks mold growth like it does with rockwool.

Mikov said:

i wonder if light hitting the cubes risks mold growth like it does with rockwool.

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I tried searching for reports of mold gathering on the stg cubes but found none, nor did I see anythig saying that is is mold resistant.

Sure to Grow makes these claims about the product;

STG Advantages for Growers:

Compatible with major growing systems
Light, clean and hygienic
Requires no presoaking, no pre-conditioning
Does not interfere with nutrient solution EC and pH
No mess, no clean-up, no measuring
Indefinite shelf life
Lower product cost, lower freight cost

STG Advantages for Plants:
Quicker germination and higher yields
Optimal aeration and water retention
Inert, sterile and pH neutral
No nutrient salt build-up
Less incidence of disease, molds and fungus

So today I took some pics. I think two of my plants are dying.


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It's the 6th and 7th pics I'm concerned about. Any advice anyone. Please....