Looks good to me. One less thing to worry about! Mid 6's is high for peat-based mediums...that's the soil range. 
Mega Crop opinions
- Thread starter 420liam420
- Start date
Alright thanks man. I’m gonna grow out some mega crop test plants anyway, try* and figure out why I can’t surf the Mega Crop wave like the cool kids do. :shakes fist:
*I’m actually not going to try very hard since my plants seem happy without it.
Edit @InTheShed I checked back and I guess it was just my brain shorting out.Nothing to see here. Actually my sunshine mix had tested closer to 6.
*I’m actually not going to try very hard since my plants seem happy without it.
Edit @InTheShed I checked back and I guess it was just my brain shorting out.
According to my contact at ProMix, 6.2 is as high as he'd like to see it rise before action is taken. I can't speak for the Sunshine mix though.
If my pH is normal I’ll have to find something else to blame I guess.
I’ll post my mega crop tests here- if they seem worth posting. Thought I’d just try basically the same crap I tried before but in a more ‘side by side’ way. Unless someone has some better ideas. ?
Higher vs lower feeding. Flushing ‘because it might be salts buildup’. Stirring widdershins vs stirring 7 times in each direction with the horn of a black goat. Calmag vs no calmag Dancing and singing to them vs just offering them money. Beating them vs ‘sweet talk’.
On mega crop most of my plants tend towards looking like this.
Meanwhile, my plants currently on non-mega crop nutes are much more vibrant.
I’ll post my mega crop tests here- if they seem worth posting. Thought I’d just try basically the same crap I tried before but in a more ‘side by side’ way. Unless someone has some better ideas. ?
Higher vs lower feeding. Flushing ‘because it might be salts buildup’. Stirring widdershins vs stirring 7 times in each direction with the horn of a black goat. Calmag vs no calmag Dancing and singing to them vs just offering them money. Beating them vs ‘sweet talk’.
On mega crop most of my plants tend towards looking like this.
Meanwhile, my plants currently on non-mega crop nutes are much more vibrant.
HigherTheHigh
Well-Known Member
I run at 5-6g per 5L pretty much from start to finish in flower and get some yellowing but it's always fixed with calmag in fact if they start to yellow I add a little more calmag knowing its got N contained into to also help.
Does anyone get less of a smell when using mg?
Does anyone get less of a smell when using mg?
Now that I moved to using other nutrients I swear my plants smell way better. It’s like the smells of the strains that I knew disappeared on MC, and now they are back again.
NorthernCosmos
Well-Known Member
As a noob switching from AN Micro/Grow/Bloom, I reckon this MC stuff ain't all bad.
The previous pair, and the first ones on MC, got a lot of yellowing and drying leaves towards the end. Autumn is normal, but there was a a little more yellow and dry than I'm used too. For the pair in the picture below, BCN XXL auto at day 54 and OG Kush auto at day 49, I've used a little more MC, feeling my way there. There are zero burns and deficiencies and the green is just nice. It remains to see what happens towards the end (80-90 days), but it's already looking better than the previous ones.
The previous pair, and the first ones on MC, got a lot of yellowing and drying leaves towards the end. Autumn is normal, but there was a a little more yellow and dry than I'm used too. For the pair in the picture below, BCN XXL auto at day 54 and OG Kush auto at day 49, I've used a little more MC, feeling my way there. There are zero burns and deficiencies and the green is just nice. It remains to see what happens towards the end (80-90 days), but it's already looking better than the previous ones.
Going all the way back to the MC instructional thread, I've said some folks just don't have any luck with some products over others, but I'm not sure we'll ever sort out why that is.
Just out of curiosity, was your slurry test from soil of the plants in flower with leaf issues or from a fresh bag of ProMix?
Your plants look great and so do Bluter’s and Farside’s and probably lots of others I haven’t seen. Vetsmoke’s plants look incredible, I should mention.
That slurry was from a fresh bag but I’ll do some testing in the pots. Honestly it seems like they dislike about everything about MC from the start, and grow slower and crappier even from early in veg, compared to other nutrients.
But I’ll do some grow tests to make sure I’m not just hallucinating, and report back.
That slurry was from a fresh bag but I’ll do some testing in the pots. Honestly it seems like they dislike about everything about MC from the start, and grow slower and crappier even from early in veg, compared to other nutrients.
But I’ll do some grow tests to make sure I’m not just hallucinating, and report back.
I doubt you're hallucinating (or you need to let us know which strains do that!), I just want to completely eliminate pH as a possible issue for the problem children. Like I said, MC will raise the pH of your substrate and many other nutes won't, so that's a major difference right there.
What nutes work for you, and of course, have you tried our sponsor GeoFlora yet? It's mix in and then top-dress, water only. Virgin Ground is having amazing success with it now in veg and will be trying out the flowering bag soon. I'll be running a plant on it start to (I hope) finish this spring with it as well. Worth a look.
What nutes work for you, and of course, have you tried our sponsor GeoFlora yet? It's mix in and then top-dress, water only. Virgin Ground is having amazing success with it now in veg and will be trying out the flowering bag soon. I'll be running a plant on it start to (I hope) finish this spring with it as well. Worth a look.
Thanks. I’ll report back in future 
The pots I tested with plants in them all came in at between 5.5 to 5.7.
Newby question of the night-
“In hydro, calcium is best absorbed by the roots in the 6.2 – 6.5 pH range (in hydro, it’s generally recommended to keep the pH between 5.5 – 6.5, but calcium specifically tends to be best absorbed above 6.2)”
If this is so and Promix buffers to 5.5 and nutes are, generally speaking, acidic, when does calcium find a chance to get absorbed?
Newby question of the night-
“In hydro, calcium is best absorbed by the roots in the 6.2 – 6.5 pH range (in hydro, it’s generally recommended to keep the pH between 5.5 – 6.5, but calcium specifically tends to be best absorbed above 6.2)”
If this is so and Promix buffers to 5.5 and nutes are, generally speaking, acidic, when does calcium find a chance to get absorbed?
ProMix isn't hydro though.
Oh yeah... back to this again 
Well never mind the dumb question then I’ll go read around a bit. Maybe I should go back over that other thread you had going.... But if the mix is doing what it’s supposed to then I probably don’t need to go tilting at that windmill quite yet.
Well never mind the dumb question then I’ll go read around a bit. Maybe I should go back over that other thread you had going.... But if the mix is doing what it’s supposed to then I probably don’t need to go tilting at that windmill quite yet.
It took me embarrassingly long to get this through my thick noggin that the secret with MC is, less is more. I was always having yellowing leaves usually worsening a couple of weeks after flip and I tried adding Calmag and I forget what else but for me the secret was using less MC. I keep my plants in veg at 3.5 g per gallon or lower and in flower now I rarely go over 5 g per gallon. Using these low dosages I am finally getting green leaves right to the end.
I posted this pic on my journal a while back just to show how healthy my bottom leaves are now. Also by keeping my dosage very low I don't have to guess whether I need to adjust up or down because if I have trouble I know to go up. I had my doubts about MC but now that I have finally dialled in my dosages it really does seem to be a balanced total nutrient. But I am experimenting with a little silica additive to see if I can get my plants a little sturdier.
This pic of a recent harvest shows how green the leaves are even at harvest if you look at the color of the pile of leaves in the background.
I posted this pic on my journal a while back just to show how healthy my bottom leaves are now. Also by keeping my dosage very low I don't have to guess whether I need to adjust up or down because if I have trouble I know to go up. I had my doubts about MC but now that I have finally dialled in my dosages it really does seem to be a balanced total nutrient. But I am experimenting with a little silica additive to see if I can get my plants a little sturdier.
This pic of a recent harvest shows how green the leaves are even at harvest if you look at the color of the pile of leaves in the background.
Timhomegrow
Well-Known Member
Great thread!
Am I understanding that MC will raise the pH over time in soil too? Or is that just promix?
Am I understanding that MC will raise the pH over time in soil too? Or is that just promix?
Soil as well. Any nitrate-based nitrogen fertilizer will raise the pH of the substrate over time and any ammoniacal-based nitrogen fertilizer will lower it.
The first post here has the basic info on pH and non-hydro substrates.
The first post here has the basic info on pH and non-hydro substrates.
@Weaselcracker
When did you get your MC? Is it the gray w/ balls formula?
When did you get your MC? Is it the gray w/ balls formula?
Hey VG. I bought it exactly a year ago. It’s kind of a tan colour, with balls. I read somewhere you mentioned issues with yours
