Rusty seedlings again: help please

[d42zero]

Here's how my coco looks all day, every day:

Moister than an oyster all the way through

 

[shottafire]

Hopefully you can figure it out. I don’t want to give my opinion cause it seems you have a few others giving there’s and my opinion would just make things more confusing for ya.
best of luck

 

[leafy86]

Quick update for all of you. Thanks for anyone how has given their opinion. A pic just now before I done a bit more LST and removed lower stuff that weren't going to benefit plant.

 

[leafy86]

Quick update for all of you. Thanks for anyone how has given their opinion. A pic just now before I done a bit more LST and removed lower stuff that weren't going to benefit plant.

OK another update. I found the problem to be no calmag as when I stopped giving it the problem come back. The last 2 watering have had 1 calmag per litre in and wow lol.

 

[rhetorrikz]

Have you checked the ec / ppm of the runoff , id be interested to know if its alot higher than whats goin in , the watering cycles and uncertainty between too wet and too dry can definitely lead to the coco holding on to too much salts and mess up all sorts of things

 

[leafy86]

Another update. Ready for harvest. Problem came back with a bang but I stopped it again but was so far into grow I stopped caring tbh.
Not the worst crop I suppose.

 

[shottafire]

Another update. Ready for harvest. Problem came back with a bang but I stopped it again but was so far into grow I stopped caring tbh.
Not the worst crop I suppose.

I don’t really know how or what your feeding but reducing your feeds and feeding them more often would probably help you. What nutrients did you use for this grow?

 

[leafy86]

I don’t really know how or what your feeding but reducing your feeds and feeding them more often would probably help you. What nutrients did you use for this grow?

Dyna foliage. But I think they was getting to dry between feeds/calmag issues. never gave them no more than 0.9 per litre feed switched to dyna bloom last few weeks but patches ain't got worse in weeks