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Well, I was hesitant getting a bowl trimmer due to maintenance concerns. The tom's tumbler looked like something I'd wish to try, but couldn't talk myself into paying so much for such a build. So ordered some similar mesh net and will go DIY route with this one. Got some time to tinker and...

2 first replies are spot on. The pots are bit small and might dry too fast. At this point I'd suggest you just water it more often, like every 3-4days to give it some dry back, but since it's fabric overwatering is more rare problem than drying too fast. When the soil is too wet or dry, the...

The leaves seems about right level of green, but it does seem like Calcium deficiency to me. The leaf tips would suggest either overall salt toxicity, or too much potassium/lack of calcium. Too much potassium would lead to calcium deficiency. If the humidity and temps are good for decent...

Thanks, haven't really paid attention to these trimming machines before, so trying to soak some info before getting one. Any "bowlers" have tried tumbler type ones? Like toms tumbler kinda thing? I'd be really interested how'd they compare to the bowl trimmers.

When switching from HPS to LEDs you lose some temps. And if you don't adjust the temps back to to HPS level (account for the IR-radiation aswell), your plants will transpire less and thus will get less Calcium. This might to lead inbalanced uptake between K,Mg,Ca. Too much of any of the 3 leads...

Looking to get myself a trimming machine of sorts. The results from the Bowl trimmers seem pretty good to me. Any specific bowl trimmers ya guys would recommend? Or how does the bowl trimmers compare to the other types of trimmers?

It's not really recommended to use full power on the driver consistently. Usually it's suggested to not go more than 80%. I'm not driving mine at full, but I still use 1 pc fan to move some air around my LED powersupplies. Without it they get hot, but not quite so hot you can't touch them, so...

Like coreywebster mentioned, the enviroment needs a slight tuning to fit better for the LEDs. Mainly they have way less IR light, so instead of IR warming the leaves you need bit higher temps to compensate. The point on spectrum and intensity is valid too. Also there was no mention of grow...

Ah yes, the deadly LED menace — silently wiping out all life, one lightbulb at a time. It's amazing we're still alive, considering we're surrounded by them in homes, cars, screens, and even fridges. Reality check: LEDs emit visible light. That’s kind of their whole purpose. Unless you're...

Data says you are wrong, but feel free to provide you source? Again, you can get wider spectrum range with LEDs, if you'd want that. Talk about having no idea of what you are talking about, while talking about lumens which is a spectrum which consists visible light for humans. I'd be eager to...

LEDs can produce NIR(near infrared) just fine. People just don't want them in their grow lights, since it's just extra heat. Plenty of LED fixtures that put out more PPF, but most don't need as much since their lights are not hanging from the greenhouse roof all the way up.

Yes, Ca uptake is mostly affected by the transpiration. Agreed to an extent, calcium is not as antagonizing to K, like it is the other way around. Likely because K can move itself well within the plant, whilst Ca doesn't redistribute itself all that well. So night cycles change the VPD and the...

Ye, like comment above. Clawing points specifically to excess Nitrogen You also got some P deficiency going on. (bluish lower leaves + red stems + flowering phase) The plants P uptake rises during the 1-3weeks of flower. After that go for more K heavy.

Yea, that is something along the lines I've used when I had the Maxigro and Maxibloom. I think I put both of those in some ratio to come close to that NPK 3-1-4 with CaMg 2-1 type of ratio. But I remember having slight Ca deficiencies before the plant grew better roots. I blame that mostly on...

I've read probably the N/P research paper once upon a time and that was probably the inspiration for me to try heavier N to P ratios. But as said they didn't really work out as advertised. As for this research the part I bolded is what I'm sort of thinking aswell. So pretty high limit for the K...

My numbers are based on elemental ppms, not the P2O5 and K2O.

K:Ca:Mg absorption is very connected to each other. Too much of any of the 3, reduces uptake of the other 2. And while K and Mg can redistribute themselves well within the plant, calcium will not move well. Also calcium uptake is mostly affected by the transpiration.

Few years back I tried some NPK levels which were from similar researches. The 5:1:5,5 NPK, which is something like Maxigro, has way too much N and K. I'd get N toxicity and Ca deficiency (likely due to excess K). Though the plant uses less N and more of P,Ca very early in veg while focus is on...

When talking about sun as comparison for light, one should always remember how different the spectrum radiation is around the world. Time of year, altitude etc.

Yep. While vegging you could even have 1:1 K:Ca since the plant needs more calcium at that point. @ifoodhippie overdoing any of the K,Ca,Mg will lead the other two absorbing less. So always think that too when starting to see one of them being deficient. Make sure you are not giving too much...