Millo
Well-Known Member
I use biobizz lightmix soil and I can notice Mg def on my autos around the 5th-6th week since sprouti only bought it because lots of ppl using biobizz seem to have magnesium prob start around 2-3rd
I use biobizz lightmix soil and I can notice Mg def on my autos around the 5th-6th week since sprouti only bought it because lots of ppl using biobizz seem to have magnesium prob start around 2-3rd
Depends, if you have a living soil it will damage the benifitial bacteria.And no, this is also a myth. You dont need to dechlorinate the tapwater.
Reminds me of thisDepends, if you have a living soil it will damage the benifitial bacteria.
cheers bud, thats encouraging.My first grow as well a couple of my GG4 autos did the same thing i think it was a ph issue cause I adjusted it and now its fixed i wish u luck
Just leave a bucket on the side for a cpl hours.thx for all the reply’s.
i will def start checking ph and hopefully see improvement.
if it is the ph causing the problem and i have nute lockout, do i need to flush now? or will this hurt the organisms in the soil?
You can avoid ph lock out by running 30% run off.cheers bud, thats encouraging.
it was all going beautifully to this issue popped up, and it’s def stunted growth but all trial and error
So you're saying that if I water with plain water till 30% runoff ( directly proportional to the medium container ), and THEN give water with nutriens, I will not have pH lockouts?You can avoid ph lock out by running 30% run off.
Biobizz + UK water is normally 6.3-6.6 ish after mixing.
Plus you should be following the schedule for biobizz.
Water being softer than 0.3 are low in Mag so will need to use half/full dose.
When I run hydro I have to buffer my water with cal/mag/silica at 0.3 to avoid calcium deficiency and pH fluctuations.
Epsom salt doesn't have calcium it's magnesium and sulphur. So might not always fix the problems. I find it easier to just use a cal/mag. It's mineral regardless of organic or not because they are mineral deposits.
Old growth will never regreen wait for it to fall of or at the point you can take it without any force.
Can do that with nutes.So you're saying that if I water with plain water till 30% runoff ( directly proportional to the medium container ), and THEN give water with nutriens, I will not have pH lockouts?
I'm asking because my water pH is 7 but I've always had Mg def or even Ca or P even though I'm following the nute chart and always give CalMag for prevention. Even sprayed foliar epsom and didn't help.
7 out of the tapCan do that with nutes.
That's out of the tap 7?
If you are getting nute problems with added cal/mag it's probably environmental.
Heat being a big factor.
What dosage of preventive calmag are you adding?7 out of the tap
I recently added a second light to my 2.3"x2.3" tent so heat definitely went up ( around 27C - 80F ). I'm having a 4" fan blowing on them to cool them off.
But I think the soil/nutes are a big problem ( in the sense that I'm not following the right schedule maybe ). Either I will follow nutes on the chart ( been giving only 1/4 of advised dose ) OR maybe mix the LightMix 50-50 with another soil?
I'm seriously desperate, all my autos have had the same issue. Healthy as fuck during veg, and then Fan leaves yellowing ( and later falling off ) just as soon as the plant enters flowering stage. What's worse is that if left untreated it affects sugar leaves too and that sucks.
I use 70% allmix and a 30% lightmix top layer.OR maybe mix the LightMix 50-50 with another soil?
I'm using 0.2ml/L CalMag.What dosage of preventive calmag are you adding?
I personally dont like flushing in biobizz soil... Compacts the soil too much and its not good for the micro-life inside it...
If you always have this problem, you need to go back to basics and check your environment (messed up RH% might cause nutrient issues).. Overwatering also causes nutrient issues.. Not checking PH and feeding below 6.2ph will lock Cal-Mag out...
My tapwater is soft and whenever i mix my biobizz solution at 1/2 recommended strength i always have to use some biobizz ph UP to adjust to roughly 6.5ph.
I use 70% allmix and a 30% lightmix top layer.
When i started growing i used to have this problems too. Checking ph and only watering 5-10% of pot volume is what worked for me... Ever since i started doing those 2 things, problems are gone... I also follow biobizz chart at 1/4 recommended and feed a small preventive calmag dose...
Don't get desperate, problems happen, the plant will bounce back. Live and learn.
This is a problem! You need to measure ph after adding nutes, not before. The nutes usually lower your ph.I only pH'd the tap water, never pH'd the nutes water. Maybe that's the problem.
Thanks! Will try it this way, hoping I can fix it lolThis is a problem! You need to measure ph after adding nutes, not before. The nutes usually lower your ph.
Right. Between 6.2 and 6.8 is the ideal range. I like to aim for 6.5ph to allow some margin of error.Thanks! Will try it this way, hoping I can fix it lol
So basically, after I pH'd the nutrient water, I need to add pH up or down to bring it back to 6.5 - 7 before giving it to the plant, right?