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You shouldn’t need much nutrients at all at the moment looks like your in soil. Soil provides nutrients for a few weeks during the plants life Give the plant a few litres of plain water let it drain out the bottom quite a bit and give water only for next couple of waterings and it will bounce...

I’d personally say that’s a nutrient toxicity rather than a deficiency

I’m a fucking idiot - I have a 1000l res but it’s multiple small reservoirs joined together and I have a 16000 lph water pump circulating water and mixing it all up. It’s a loud pump so you can hear when it’s on. Anyway I just happened to put my hand in the water to check one of the 2 inch...

I’m actually considering switching to megacrop after I run out of these veg+bloom as megacrop turns out to be like 80% cheaper

It’s veg+bloom RO soft. It’s a powder so no liquid. I don’t measure the grams. I add it and watch the plants and measure by Ppm’s in the water (X500 Ec) It’s vertical pipes stacked floor to ceiling. Plants sit in the side of the pipe. Water sprinkler at the top of the pipes so sort of a low...

My base claims to have 7% ca and 2.5%mag which is why I was confused when I am getting this deficiency. I’ve added gypsum 2 days ago now and still showing signs of ca deficiency. CAnt tell for sure if it’s getting worse or not yet I’ll have to keep an eye over next couple of days

So yeah gypsum is calcium sulphate. It is crazy how fast it dissolves. I didn’t actually believe my eyes. I was dumping over 100g of the stuff into my res and it literally vanished as if by magic. It seems I have calcium deficiency. Not magnesium or anything else? So I have now tried added...

Ph changes very little over the period of the grow I assume it’s possibly due to stabilisers in the nutes or something. It may drop by a couple of points. My last few grows I never dumped at all. I dumped and refreshed my veg room after 4 weeks of veg when plants moves to flower. And I dumped...

Ph is always around 6 it doesn’t tend to drift much I use veg+bloom Ro soft. This is all I have ever used before and was fine. I added gypsum and Epsom salt last week upon recommendation here with no improvement 1000l nutrient reservoir

They come in 280mm, 560mm and 1120mm

Would end up looking like this Although the guy mounted the leds on the wrong side of the aluminium imo. I’d mount them so the edges point up not down so heat doesn’t get trapped

Like this

Not a disposable one, as they are more like tin foil but they may be ok. I wouldn’t use them tho personally. Think more commercial kitchen, aluminium tray that they reuse for years

You won’t need a cutting tool if you use Samsung strips. Go online and buy some aluminium baking trays as big as you can find or the size you need for your footprint Go and buy some Samsung led strip lights Buy some heat transfer tape Stick the leds onto the tray with the tape Buy a reel...

Have you not considered building your own? It’s really easy and it will end up cheaper and you’ll be able to design a light to fit your footprint Samsung striplights come with connections no solder needed

Can you show a picture of this led? Do you have a watt meter? I’m gonna have a wild guess and say your leds are not really 60W and actually draw as little as 10w from the wall and wont grow anything smokeable

What grow lights? CFL? Led? How far away are they

What do you think is the issue? To me they look like healthy plants early bloom. Although with very little light intensity. How much light are you giving them? They look like buds that grow below my dense canopy if I don’t prune them

I have the same issue. Common consensus is that it is calcium deficiency. It’s an annoying issue for me as no amount of extra calcium added to my res seems to be fixing. It

Looks like you over watered it to me. Starved it of oxygen