James108
Member
I have a bunch of babies that popped from seed nearly 3 weeks ago and they are performing badly. Most are still only a couple of inches tall, slightly yellow and the sprout leaves are yellow/shriveling up.
The seed stock is fine, so it's not genetics.
I'm using a 600W hps bulb about 5 feet above the plants. For the first 10 days I used a couple of 125W CFLs.
Temperature is between 25 and 27 degrees C.
I'm using a soil mix from the local garden center with NPK - 12/10/16.
With the later batch I mixed in about 40% coco fibre / perlite but performance is still very bad with all plants.
Today I flushed them with double the pot size of Ph 6.5 rain water. All the water I use is rain water.
This is the first time I've had this problem and it's really confusing me.
Normally I use BioBizz Light Mix but couldn't get hold of it this time around, could it be simply that there is too much Potassium (K) in the soil?
Any advice would be appreciated.
The seed stock is fine, so it's not genetics.
I'm using a 600W hps bulb about 5 feet above the plants. For the first 10 days I used a couple of 125W CFLs.
Temperature is between 25 and 27 degrees C.
I'm using a soil mix from the local garden center with NPK - 12/10/16.
With the later batch I mixed in about 40% coco fibre / perlite but performance is still very bad with all plants.
Today I flushed them with double the pot size of Ph 6.5 rain water. All the water I use is rain water.
This is the first time I've had this problem and it's really confusing me.
Normally I use BioBizz Light Mix but couldn't get hold of it this time around, could it be simply that there is too much Potassium (K) in the soil?
Any advice would be appreciated.
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