Vegging with mh

Sam sneak

Active Member
So I've been vegging plants for afew months with no problems up till I've put all these ones in some have gotn yellow and looking kind of shit I was using hps 400w for veg but now have changed to solar max 400w mh conversion and I already see a clear difference in the quality of the light very clear I hope it changes things and brings beautiful green again one is hps one is mh light in the photos
 

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chuckeye

Well-Known Member
Normally you use MH for veg and HPS for flower.

What is your soil and feed ?

They look hungry..

Cheers
 

calvin.m16

Well-Known Member
As another poster said they are certainly needing more fertilizer or frequent watering. What is the growing medium your using?
 

Sam sneak

Active Member
As another poster said they are certainly needing more fertilizer or frequent watering. What is the growing medium your using?
Just potting mix I use worm castings as well to but yeah weren't the best clones I ran out of seed raising mix and yeah I have more cuttings on there way the next week that will look better will have to see in a week or so I'm using just a nitrogen additive and some seaweed fertalizer for veg once a week but those cuttings that are looking shit will be OK they all revegging cause the plant they came off fan fell on and killed the plant so yeah I just tryed to save as many as I could but yeah I will put them aside and put new ones in there soon just don't like throwing away will just let them grow somewere when time comes to put healthy ones in there
 
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jimihendrix1

Well-Known Member
The plants under the MH look like theyre getting sick, and they just progressed under the HPS.
They desperately need fertilizer. Its not the lights fault. Its lack of feeding.

I use a 1000w Hortilux HPS from seedling- flowering, and have for almost 30 years, and have no problems using the HPS. The Hortilux has slightly more blue than the Solar Max. 2100k vs 2000k. Plants do need some Blue in there. Blue is essential for life.

One tell tale sign they need nitrogen is the are yellowing from the bottom up. But they just need a complete feed ratio with all nutrients. They also probably need magnesium. Magnesium is the #1 deficiency in container grown plants. 1 tsp Epsom Salts per gallon of water.
 

Sam sneak

Active Member
The plants under the MH look like theyre getting sick, and they just progressed under the HPS.
They desperately need fertilizer. Its not the lights fault. Its lack of feeding.

I use a 1000w Hortilux HPS from seedling- flowering, and have for almost 30 years, and have no problems using the HPS. The Hortilux has slightly more blue than the Solar Max. 2100k vs 2000k. Plants do need some Blue in there. Blue is essential for life.

One tell tale sign they need nitrogen is the are yellowing from the bottom up. But they just need a complete feed ratio with all nutrients. They also probably need magnesium. Magnesium is the #1 deficiency in container grown plants. 1 tsp Epsom Salts per gallon of water.
Yip I used guano supergrow to feed them today ill feed again in few days and light water them the rest I removed the really small ones that weren't doing the best and added 3 more I will have a lot more soon so no worries got to get some better soil to just try not to buy it gets expensive when u buying 40litre bags all the time so yeah still waitn on my compost bins been 3 months I'm sure now not sure if should give them a look put some lime on the top about 2weeks ago so hopefully that speeds things up alittle and yeah as for soil I reuse it and buy bags here and there and leave them in a plastic storage container in the sun for a week or 2 to dry it out and hopefully kill any bugs before I put them in my rooms been lucky so far just gnats or fruit flys
 

jimihendrix1

Well-Known Member
Its also a good idea to combine both Calcitic Lime, and Dolomitic Lime at a ratio of 2/3 parts Calcitic Lime, and 1/3 parts Dolomitic Lime. That way you supply both Calcium, and Magnesium at a good clip, and ratio.
Calcitic is also preferred for faster PH changes.
Promix BX-HP uses both types of lime, and in those ratios. I use the BX.

It would also be a good idea to add Kelp, and Azomite to your mix. Kelp will supply extra Potassium, and trace minerals, and Azomite will also add extra trace minerals.

Also dont cut out Nitrogen when you go to flower. If your using both the Natures Own Guano veg formula, and flowering formula. Add the flowering formula to the veg formula. Dont cut out the veg formula, and use the flowering formula as a single source.

I myself would just use the 10-10-2 and added Kelp to make up for lack of Potassium, for the whole duration, and skip the 1-9-1 alleged flowering formula. All they need is a basic ratio of nutrient rich soil from start to finish, with possibly some benefit of adding a small amount of both Phosphorus, and Potassium in weeks 3-5 in an 8 weeks flowering strain. Also make sure they get Magnesium on a regular basis. Weed is very magnesium hungry, and Magnesium is the #1 known deficiency in container grown plants. Id use Epsom Salts. It also supplies Sulfur, which is known to be beneficial to Terpene production.
The above Lime combination will also go a long way for insuring an adequate supply of both Calcium, and Magnesium.

Get some Promix BX, or HP if you can. The HP is more porous, the BX holds more water. I prefer the BX under 1000w HID
 

Sam sneak

Active Member
Its also a good idea to combine both Calcitic Lime, and Dolomitic Lime at a ratio of 2/3 parts Calcitic Lime, and 1/3 parts Dolomitic Lime. That way you supply both Calcium, and Magnesium at a good clip, and ratio.
Calcitic is also preferred for faster PH changes.
Promix BX-HP uses both types of lime, and in those ratios. I use the BX.

It would also be a good idea to add Kelp, and Azomite to your mix. Kelp will supply extra Potassium, and trace minerals, and Azomite will also add extra trace minerals.

Also dont cut out Nitrogen when you go to flower. If your using both the Natures Own Guano veg formula, and flowering formula. Add the flowering formula to the veg formula. Dont cut out the veg formula, and use the flowering formula as a single source.

I myself would just use the 10-10-2 and added Kelp to make up for lack of Potassium, for the whole duration, and skip the 1-9-1 alleged flowering formula. All they need is a basic ratio of nutrient rich soil from start to finish, with possibly some benefit of adding a small amount of both Phosphorus, and Potassium in weeks 3-5 in an 8 weeks flowering strain. Also make sure they get Magnesium on a regular basis. Weed is very magnesium hungry, and Magnesium is the #1 known deficiency in container grown plants. Id use Epsom Salts. It also supplies Sulfur, which is known to be beneficial to Terpene production.
The above Lime combination will also go a long way for insuring an adequate supply of both Calcium, and Magnesium.

Get some Promix BX, or HP if you can. The HP is more porous, the BX holds more water. I prefer the BX under 1000w HID
Awesome thanks
 

Sam sneak

Active Member
Just an update few days they looking better afew I'll probably put aside cause they bit stunted but most are doing OK another lot of cuttings rooted been having good success rate with just a dome and floro light I must say at first I had such trouble doing that way but now it's become easiest for me I have a cloner to and yeah aint been doing great for some reason starting to think about putting it away and just doing the dome and floro way cause been 98% success so far roots in 4days for some and by day 10 all done I'm going to try few more things with the cloner tho without any regen a root and no hormone just plain water without the dome and then with the dome and if it don't start doing its job putting it away and sticking to wat works
 

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