is it heat or over water?

and this is my first grow still noobin it up

Nutrient Film Technique?

thats advanced level shit, theres so much that can go wrong...

you could have bacterial growth in your tubes, your water channels could be filled with algae, your pump may not be moving enough water, your roots may be stacking upo on top of each other and drying out, you may have light leaks that are killing your roots, your solution may not be 5.8-6.0 at all, unless youre testing it you cant be sure.

go over your whole system bit by bit, make sure you have no light leaks, no algae buildup, no dead roots, no funky smells, and definitely make sure your solution is as close to 7.0 as you can get it.

those pics are screaming root stress, and when you take pics, do it in NORMAL light not HID lights.

if we cant see the actual color of your leafs we cant tell whats going on.

looks like you may have an overabundance of nitrogen though, cuz them leafs is dark.

LOL How do you over water in NFT? Nitrogen toxicity is the biggest problem I see from the pics..

I agree looks like N claw. Reduce the veg nutes.

[QUOTE=Dr Kynes;8576593]Nutrient Film Technique?

thats advanced level shit, theres so much that can go wrong...

you could have bacterial growth in your tubes, your water channels could be filled with algae, your pump may not be moving enough water, your roots may be stacking upo on top of each other and drying out, you may have light leaks that are killing your roots, your solution may not be 5.8-6.0 at all, unless youre testing it you cant be sure.


go over your whole system bit by bit, make sure you have no light leaks, no algae buildup, no dead roots, no funky smells, and definitely make sure your solution is as close to 7.0 as you can get it.

those pics are screaming root stress, and when you take pics, do it in NORMAL light not HID lights.

if we cant see the actual color of your leafs we cant tell whats going on.
looks like you may have an overabundance of nitrogen though, cuz them leafs is dark.[/QUOTE

yea this setup is the second go the first was totally built wrong but this one is seems good I had the problems you talked in the first round I got a Hanna combo pen so I know the Ph is spot on and no root problems that I see for roots the rootmat is thick as he'll though but bright white roots no smells or light leaks learned about that the hard way

Originally Posted by Alexander Supertramp

LOL How do you over water in NFT? Nitrogen toxicity is the biggest problem I see from the pics..

Idk the interweb is full of shit I've been reading a lot but it seems like their is a lot less info on nft

Originally Posted by *BUDS

I agree looks like N claw. Reduce the veg nutes.

Sounds good ill drain some res water and refill with my RO stash and I'll take better pics with out the hps on