Heat Stress, PH problem, or Over Fert??

[AirBuds]

This is a reggie plant that I've been growing as more of a test plant.

It was started in rockwool (soaked in water + big bloom mix) and after just 2 days it had germinated and sprouted up and started growing it's first set of leaves.

After 1 week and when roots were started to show, I transplanted RW mini cube to soil. (OF). I soaked soil with distilled water ph'd down to 6.5.

After 3 days I watered with water and big bloom mix again and first time after transplanting to soil.

I'm also using 300w LEDs that were about 6" above the plant.

Over the weekend is when I noticed the problem and I've moved the lights back to above 20" and this morning I flushed it with plain distilled water.

 

[Muddy]

OF has had wide pH variances for the past couple of years. Some bags have been below 5.0 right out of the bag. It's also considered a hot mix since it contains significant amounts of worm castings and guano. Next watering you'll need to capture some run off and test that as well. Let us know the pH of your feed and your run off. I wouldn't be surprised if it's very low and you may need to add some dolomite lime. When using OF it's best to start your seedlings in a soil with a lot less nutrients. Because of the high nutrient content in OF no additional nutes are needed for the first 3-4 weeks, so only give it plain, pH balanced water during that period.

 

[AirBuds]

OF has had wide pH variances for the past couple of years. Some bags have been below 5.0 right out of the bag. It's also considered a hot mix since it contains significant amounts of worm castings and guano. Next watering you'll need to capture some run off and test that as well. Let us know the pH of your feed and your run off. I wouldn't be surprised if it's very low and you may need to add some dolomite lime. When using OF it's best to start your seedlings in a soil with a lot less nutrients. Because of the high nutrient content in OF no additional nutes are needed for the first 3-4 weeks, so only give it plain, pH balanced water during that period.

Yes I forgot to add that.. I tested the run off and it was really low like around 5 and that's why I flushed with plain distilled water this morning.. I have some dolomite lime if I need to add it

 

[Muddy]

Looks like you got one of the bag bags. Yes, add some dolomite. One tablespoon per gallon of soil mix. Mix it into the top layer and water it in. It's slow acting, so don't expect to see any change in the pH for about two weeks.

 

[AirBuds]

Looks like you got one of the bag bags. Yes, add some dolomite. One tablespoon per gallon of soil mix. Mix it into the top layer and water it in. It's slow acting, so don't expect to see any change in the pH for about two weeks.

Ok will do.. thanks for the advice..