Desperate Help Needed: Not A 1st Time Grow

[mattx]

I have grown a few times, always with pretty good results. I have grow GG only until now.

I bought a few new types of seeds from 420 and 2 of the plants (different strains) are showing the same issues as one another while two plants looks OK.

These are inside grown, light's 18-20" off the plants. The ones struggling are Black Widow and Gold leaf.

The leaves look shrivelled, the bottom leaves are dying.

Here are the details on the grow
420 Seeds
Organic Promix Soil (locally can't get foxfarm due to closures)
Roleadro 600w light
Water pH always to ~6.4
I use FoxFarm nutes but only once in 2 weeks at 1/2 strength because the soil is new

Two of the plants look good (the indica doms) but the Black Widow and Gold Leaf are driving me crazy.

 

[AdaminCO]

Stupid question, but are you checking pH before, or after mixing?

 

[Slicknick909]

How often are you watering them?

 

[AdaminCO]

I have grown a few times, always with pretty good results. I have grow GG only until now.

I bought a few new types of seeds from 420 and 2 of the plants (different strains) are showing the same issues as one another while two plants looks OK.

These are inside grown, light's 18-20" off the plants. The ones struggling are Black Widow and Gold leaf.

The leaves look shrivelled, the bottom leaves are dying.

Here are the details on the grow
420 Seeds
Organic Promix Soil (locally can't get foxfarm due to closures)
Roleadro 600w light
Water pH always to ~6.4
I use FoxFarm nutes but only once in 2 weeks at 1/2 strength because the soil is new

Two of the plants look good (the indica doms) but the Black Widow and Gold Leaf are driving me crazy.

Are you using the FF Trio?
Are you following the pamphlet schedule for soil? When I ran FF, I started at 1:4 strength. Don’t go by the bottle directions.

 

[CADBOY]

My personal opinion, I may be wrong. BUT.

Make sure the container has a hole in the bottom. You don't want mud.

Also, feed nutrients more often, even if its half strength.

Make sure you dont have a fan pointed directly at them.

IMO looks like lack of Nitrogen and possible water log.

 

[AdaminCO]

I agree with over watered

 

[bobrown14]

Why are we "feeding" seedlings??

These are dicotyledons - they have a food source up to say the 3rd node and will grow fine without any added fertilizer.

The cotyledon leaves or the first leaves already have nutrients in then.

They looked burned up to me with too much fertilizer.

 

[AdaminCO]

Why are we "feeding" seedlings??

These are dicotyledons - they have a food source up to say the 3rd node and will grow fine without any added fertilizer.

The cotyledon leaves or the first leaves already have nutrients in then.

They looked burned up to me with too much fertilizer.

Honestly Organic Pro Mix probably doesn’t need any nutes. Feed the crobes

 

[Creepshow5150]

Definitely agree with bobrown i cut my two soils and flush them before i even drop my seedlings. Read up on your grow first. Knowledge is power!!!