Hi all,
I’ve been using Mantis Buffered Nutrients and been running into problems. I’m 33 days into flower (from flip) and here’s what’s happening
70/30 coco/perlite
5ml per L of Mantis with tap water
Temps 75-80F day, 68-74 night
RH 40-50%
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I’m not familiar with Mantis, but the plant just looks hungry to me.
I’m thinking just some more nitrogen.
I’d suggest to remove those lower necrotic leaves as well.
Cheers
G
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What is you nute pH going in and runoff?
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It’s a PH buffered nutrient, all in one. You can’t test PH with it because of the buffer preventing a good reading. It’s PHd to sit between 5.8 and 6.2 at all times. That’s what’s making this tough…you can’t adjust anything. If I could flush it and use something else I would.
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I think maybe my water is too high ph or ppm for the Mantis to work properly…or it’s a scam lol. I just don’t want this to die before harvest in 4-5 weeks.
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Ok, but it is a good practice to check and rule that out as you run down possible issues.
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What’s your tap water pH? 
I found their web page and read through the info.
No, not a scam.
They don’t like RO water, therefore (reading between the lines) they are expecting municipal water (enough added buffer to hit pH of 7.5~8).
Do you know your water’s pH?
Don’t mess with your water unless it’s really out of whack…
There is enough differences between strains that you can’t expect a “one size fits all” approach to be optimal for all strains.
That said, your plant is looking OK, it will finish and you will get a good harvest.
I’d suggest cleaning out the necrotic lower leaves as that can be a source of infection later (just good hygiene practices).
If you decide to look at a different nutriment for your next grow, think about Jacks 3-2-1, there’s a couple Canadian sources now and folks around here love it.
Cheers
G
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That plant is root bound… which will give you major feeding issues
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Don’t think so, it’s in a fabric pot, roots prune themselves … 
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My tap PH , measured with an aquarium test strip shows PH maxed out on the chart which is 8.4 , not sure if it can be higher but I tried mixing 1/2 distilled, 1/2 tap and then Mantis and it looked worse the next day as if it progressed faster, so I went back to just tap.
My tap PH is maxed out at 8.4 according to the test strip chart. You really think it’ll make it to harvest? I hope so, this is my last plant of 5 this grow was a nightmare, and my first grow. Lots happened so I’m desperate to save this last one. I’ll go cut the bad leaves off. I thought if the plant was pulling nutrients from them I should leave them but seems it’s better to yank them. Thanks!
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I hope your plant makes it to harvest…
Good luck brother…
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@Kushking902, you’re the only one I know who’s used Mantis and I seem to remember you had similar issues with it… I think those plants made it to harvest somehow, but you had to make some adjustments if I recall? Maybe you could help.
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Thanks, when pH is too high at least the chelation process in Advanced Nutrients pH Perfect doesn’t work as it should, don’t know if it will also be your case … 
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You are correct as long as you clean them out. Pot looks a little dirty. How big is that pot? Looks like it’s ready to explode, how old is that plant?
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Pot is 3 gallon fabric smart pot. The plant is 68 days old from seed, 31 days after flipping the light to 12/12. I have been watering until runoff until yesterday I watered without runoff just to see if it makes a difference. The Mantis makes it really tough to figure anything out though.
Stem looks beefy in pic, wasnt sure if it’s an older mother plant.
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Definitely tell you have been watering the shit out of it. What doe you mean watering it until run off?
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