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I have a 90 gallon reef tank and wanted to do a DIY LED setup for it. I am not sure exactly where to start, since the spectrum is so blue. I wad thinking just 10,000k white LEDs, but the decent LEDs only go up to 5000k-6000k so I would need to add some blue diodes, but I have no idea which ones...

I understand what you're saying, i just wanted to put that out there as general information. I believe you can definitely use a smaller hood in a 4x4 and get the same yield, but in a 5x5 it will use the entire space much better if that's what you desire, but like you said your yield per sq ft...

That's not what I meant lol. Obviously PPF is relative to the space, which equals the PPFD. I was just saying how the extra diffusion would mean your canopy could be thicker. Those magnum xxxls fit in 4x4s and kick ass

Not to disregard your experience and anecdote, but the more diffuse the light is, the further into the canopy it can penetrate. Proof: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4559655/ https://academic.oup.com/aob/article/114/1/145/2768977

Eye hortilix super hps bulbs have been around for a long time The 1000w is 145,000 lumens They're only slightly better than other hps bulbs https://growace.com/blog/the-best-hps-grow-bulb-test-comparing-6-brands-on-par-output/

They're ETL certified, so i am assuming they're marketed for commercial growers who cant/wont diy/set up their own boards/drivers And they will happily pay that price Also it's canadian dollars

Yeah, so like 500-600 grams dry. Check the trichomes in the pics, it is definitely ready And it should put me in the 500-600 gram dry range. I also have another 100-150 grams (wet) of popcorn bud. Ill be sure to post the official dry weight once i can

Harvest day (day 60 of flower) excuse my lame trim job, gonna go back over it once it is dried. Wasn't expecting to harvest today. I woke up and checked the trichomes for the first time and noticed it was perfect. Explains why it was fading too. Oh, yeah, 2420 grams wet (with stems). Fuck off...

Nope. Lights been on full blast since like week 2 or 3 of flower, and if anything ive been upping the nutes over time. It's fading so much because I just can't get enough nitrogen into this plant for some reason.... Im going to start using a veg tea and seeing if that helps. This is supposed to...

DAY 49, FADEEEEEEEEEEE

DAY 49, FADEEEEEEEEEEE

Loving the strips so far. Every bud is the same size pretty much, i dont expect much if any popcorn/larf bud. Buds are a really good size for this point in flowering and holy shit the frost is next level. Ill definitely outperform the gram per watt from my bluples. The buds are twice the size...

Day 29 of flower. Been doubling my HH and DD doses every feeding. Still seeing clawing from the cal deficiency but im not sure if it will fully go away being it's in flower.

Did a slurry test yesterday of my soil. PPM was only 107. Def bumping up my nutes a lot. Just fed with 2.5x the doses of hereculean harvest (liquid bone meal) and demeters destiny (liquid calcium) and also more olympus up (liquid lime) to compensate for the lower ph from the additional HH.

DAY 22 FLOWER, trying to fix this weird ass clawing, it's def not nitrogen as some leaves on the bottom are yellowing, gonna be bumping up my HH doses a lot more

No. What exact "600w" LED do you use?

Looks good. If you can toss in 2 samsung LT-562B 22" strips in there, you'll be golden. 3x3 tent im guessing?

Thanks for the input. I get what you're saying. My plant is approximately 50% that first pic and 50% the second. I was wanting to drop the scrog net a bit to get the plant more woven in instead of like pic 2 but I didnt as per advice of a few people. I find if I do ample trimming it doesnt...

Day 14 flower, buds r swelling really nicely (doubled in size in last 2 days). Got a little "NFTG calcium deficiency" so next watering will be pure HH to bind to the excess nutrients and get em into the plant to clean things up. The clawing is what I am referring to. Classic NFTG cal deficiency...

Day 12 flower