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I essentially did that but I wasn't sure the right way to find the right spots to drill the holes for the cobs. Also I essentially miscalculated where the power supply would be so I had to redo that. It was a mess. I absolutely do not recommend building your own if you're just going to...

Yep but the holes in the cob were uneven or something, I don't know. I thought it would be a lot easier than it was. I cut my own aluminum but the cuts weren't perfectly straight so I had my local Ace hardware do it for free. Connecting the aluminum pieces to itself went mostly well but then...

Well, I'd love to get some insight on what is going on with this plant. It doesn't really seem to match any of the pictures I see on http://www.growweedeasy.com/marijuana-symptoms-pictures

I honestly don't know what to do. I'm not even sure if this is a cal-mag issue honestly. I know the brown dots are calcium but this yellow discoloring is only on one plant and it seems quite bad. The advice on this thread ranges quite a bit. Hard to say who knows what they are talking about...

RapidLED Vero29 600w with fixture: $750 + $190 = $940 Timber Vero29 600w Framework: $899 ...just to clarify for others who read this thread.

Link it if you're so confident about this.

Exactly...I thought I'd make my own in an attempt to save $50-70 but in short that did not happen and it took me about 8 hours to complete the drilling alone. Lots of mistake holes in my fixture now.

Until a few days ago I was watering with my tapwater recently tested at ph 8. Last watering a few days ago was watered down to ph 6.

I've only taken my soil runoff ph once and it was ph 6.3ish. This was the first time I ph'ed down my water (because I'd finally leanrt that its normally 8 ) It's tough to know moving forward if I should ph down or up. My EJ blend PH is 3.5-4 and their website claims you do not need to adjust...

Are you saying feeding soil or runoff? I ask because I've heard "do not adjust ph on soil because it buffers".

I frankly don't know what to make of that chart personally. All I know is I have a grow, few plants w brown spots, one plant w major yellowing, super super spotty. See my thread in Plant problems. Getting damn tired of not seeing these things just grow.

So...ph it down more? the same? I don't know what you're suggesting.

I recently replaced my Mars II 9000 with a custom 400w vero90 cob kit.

Yeah...I hear you 100%. But last time I watered (4 days ago), it was ph'ed down to 6 and I took runoff which was 6.2 avg. I still am seeing deficiencies.

Unless soil buffers it ??? (I have started to ph it down to 6 once I learned this a few weeks ago.)

My tapwater ph is 8. Seems off based on any guide ever. Never got an answer on of the soil PHes down.

Yeah, cant afford it. Hence my effort into making sure this goes well.

well..yeah...i hear you. my current problem seems like cal/mag but I could go in depth on explaining it here but its on another thread. Edit: Also, I have yet to get feedback on if soil buffers in both directions. Ie. My EJ lineup reads at about 4.0 and I've heard thats fine, but what about...

My topic isn't supposed to contribute. I wanted to know phrases you're' tired of hearing of. My point still stands. I don't mean to be ungrateful, really, but if I ask for help, which is the point of posting here frankly, I don't want ot be told any advice is useless dependent on strain. You...

...yes. https://www.rollitup.org/t/calmag-about-to-flower.947086/#post-13724433