Help identify cause of browning

M

MrHerbie

Member
Can anyone help me identify what could be going wrong here.
Starts on lower shaded leaves, especially after switch to 12:12.
Indoor Hydro grow in expanded clay.
This is typical how it affects the leaves but it spreads and can eventually kill whole branches
1001.jpg
This is a different plant, but still a lower shaded branch, top growth of the plant looks good.
10002.jpg

Any clues as to my problem?

Thanks
 
Just a guess from the dark green leafs and browing tips that curl down it looks to me like Nitrogen toxcity. Just a thought.
 
DancesWithWeeds said:
Prety sure I was wrong. The images of pythium on google all look like the plant.
Click to expand...
Ok, yeh, I think that's what it is looking at other pictures online. So should I just increase H2O2 to try and keep on top of it? Currently 2ml/10L of 50% every 3 days. Or use bleach instead? Water temps are too high 25degC but not much I can do about that. I could put bigger air pump in reservoir I guess would help?
 
MrHerbie said:
Ok, yeh, I think that's what it is looking at other pictures online. So should I just increase H2O2 to try and keep on top of it? Currently 2ml/10L of 50% every 3 days. Or use bleach instead? Water temps are too high 25degC but not much I can do about that. I could put bigger air pump in reservoir I guess would help?
Click to expand...
Man, I don't really know. Never had it. It's best to ask someone else. I just like to chase the problems down. This is a new one for me. As far as the cures go I don't want to guess.
 
Well, adding a bigger air pump might add even more heat when its already bad enough..

Cooling the solution in the res will not only drastically up the maximum amount of dissolved oxygen (making the current air pump more efficient), but also make it harder for the pathogens to grow at the same time due to the lower temps.

If chemical treatment is the only option, I would go for the bleach, and pray it doesn't spread. Insulating the system, whatever that is, might help cut down a few degrees.

Otherwise get a chiller, or switch to another medium..
 
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