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i'm with @ttystikk 37.5w/sq ft is a bit excessive. that's what my second tent is running and they're not really happy if they get within 12" of the lights. it's 300w at 50% efficiency in a 8 sq ft tent.

anywhere from 25-35w per sq ft in flower from 10-20 per sq ft in veg

hey @Precaution that tent just came on so i could grab a few pictures for you. this is 4x bridgelux vero 18 gen7 BXRC-40E4000-C-7X cobs on 30" of the sink i linked you to above. 4 of that model vero 18 is perfect for the HLG-120h-c1050

your tap is accumulating limestone in the medium and forcing the pH up, calcium is being locked out as a result. IMO the best options would be adding distilled or rainwater to adjust EC in my experience a tap water ppm of 120-130 is the absolute highest i could go without calcium problems...

no problem man, glad my experiences could help someone.

correct, fans suck IME. i lost 2/6 of the arctics within the first month. i just put a fan up in the top of the tent blowing air down, it cools the sink and provides enough air movement for the plants. gets two birds stoned at once.

i use the exact setup you describe (4xvero 18 and hlg120 1050) in one of my tents, and it stays pretty cool using 30" of this profile- http://www.heatsinkusa.com/5-886-wide-extruded-aluminum-heatsink/

i use jack's tomato feED for my ladies. i'm doing a coco soil with added kelp/alfalfa/bone meal and mineral supplementation. i dilute my tap water down to ~100ppm, then add 3 grams per gallon tomato feED and 1/4 tsp per gallon epsom salt. crushing it with COBs, significantly over a gram per...

definitely gonna need sunglasses in that tent! can't wait to see it rockin!

i'm very curious about ACE's landrace strains, definitely keep us updated on how they veg out!

looks to be perfect timing on flower, i found these pictures online a few years ago and they served me well the time i ran a low wattage SOG. good luck with your grow!

that's a wireless temperature/humidity gauge, hung from the side of the 315w. i do like the combo better than plain COB, i'm seeing better density running 20w/sq ft in the combo room than the COB only tent at 25w/sq ft. i think the IR actually helps a bit (functions similar to a catalyst in...

20 oz for a vertical plant is a true 20 oz though- there's zero B grade if the technique is utilized properly, and obviously you're doing it right.

From last run, BTK kush. These are dripper fed jack's tomato feED 12-15-30 Group shot with this run on the left hand side. BTK was on the right wall.

ha, was following you on IG and found you on here. i'm the fella who told you the lemon G story.

still lookin' good groerr!

i'm a little late to the party, but i'm still pullin' up a chair. subbed!

tty is right, you want to match the breaker to the projected draw main reason is the wire that runs between the panel and receptacle. if you kick the breaker when they're matched, no extra heat because the current required to kick the breaker is within the tolerance of the wire. if you kick...

9 plants in 2g containers, minimal veg, no topping to minimize bushing. my philosophy is to find the best phenotypes ASAP if i can't find clones, so i usually sprout all the seeds at once.

the business got crazy for a while, but i'm back :bigjoint: still zero maintenance on the COBs, still the original bulb in the 315w fixture, love it! made the switch to jack's tomato feED, and it's great. i dilute my tap down to 100 ppm with distilled, add a tsp of epsom salts and a tbsp of...