Spots on leaves

[SoLowDoughLow]

Hey guys, I was wondering if anyone could help me identify what the problem is. I got 5 mystery plants going right now in DWC.

Im having issues with 2 of them. The new growth looks alright I suppose but the old leaves look bad, and it seems to be spreading up.

Ph was 5.9 when I checked and EC is .5

Here is my environment...


The problem plants...


The other 3 look good in the same environment. Could they just be hungry? Calmag? Any ideas?

 

[macsnax]

Looks like early phosphorus def to me. Usually comes with a lil crinkle that I see in the last thumbnail too. Maybe bump her up to .75ec.

 

[SoLowDoughLow]

Looks like early phosphorus def to me. Usually comes with a lil crinkle that I see in the last thumbnail too. Maybe bump her up to .75ec.

Thanks for the response bro, I'll give that a try!

 

[Bodyne]

 

[SoLowDoughLow]

Now I believe i'm dealing with root issues. Problem is, why just these 2, and how do I fix it?

I run megacrop and a sterile res, and normally I never have root issues... but I bumped up the EC and its getting progressively worse and the roots look like ass.


Here are the healthy ones, same environment and feeding

 

[macsnax]

What are your water temps? You muggy want to look into hydrogaurd if your having trouble keeping a sterile res.

 

[SoLowDoughLow]

What are your water temps? You muggy want to look into hydrogaurd if your having trouble keeping a sterile res.

Yea, I've got some hydroguard. I actually switched to sterile tho because it didn't work out too well.

My temps are usually pretty warm (75 +), and I have wondered if a flood and drain would work better for me...

But for now, I wonder if putting my air pump on a timer could help reduce temps?

 

[macsnax]

Yea, I've got some hydroguard. I actually switched to sterile tho because it didn't work out too well.

My temps are usually pretty warm (75 +), and I have wondered if a flood and drain would work better for me...

But for now, I wonder if putting my air pump on a timer could help reduce temps?

I'm sure it would. Just make sure they are getting enough oxygen. I've never done that so I don't the intervals to shoot for.