Recent content by Dr. John Hopkins

Any master growers can tell just by looking at the leaves?

Ph is 5.8, EC 0.9 root temp 23-25c, Humidity 50%

So what is happening? Because my plants dont have nutrient burnn

What is this crap videos you sending

Just fluorescents. Just checked getting brown spots on leaves now

It's what looks like magnesium or nitrogen def, Medium: coco coir perlite Fed: canna coco 2 parts, cmx, rhizotonic, Rapidly spreading through crop,

Coco coir perlite 60/40 mix I watered when it was still damp to add more cmx

I have no idea what happened but this plant started rapidly declining. 2 days and it looks like its spreading to other plants. In between veins is going yellow... Help!

Can someone identify this bug?

Do NOT use Distilled water to store PH Pen!

Hello, This would be a question to the most advanced Ventilation guru's. I have a 1m2 + 2m2 tent I have 1 200mm Isomax Silencer Fan. 1m2 for Veg 2m2 for Flower My Outtake is between the two tents. Is it possible to vent equally using my fan? As far as i know the smaller tent would have...

Here's my scrog, I'm really needing 1lb+. Any guesses to yield potential? Haha

If I were you I would run the lights at night to compensate the temp drop. Only prob with that is I get fucking paranoid with the choppers and flir haha, it may be me just being too stoned

Hey man! Good to see us breaking the norm eh. I have a 6 cob and 4 cob led from easy grow, I grew "double black" with the 4 led, buds fattened up and I was stoked! But once I harvested the buds were not dense at all!! So I don't trust using those cobs for flowering. Has anyone else had similar...

Fellow kiwi tuning in. This vert grow is new to me, i wouldnt risk it with my magnum xxxl from easy grow lol. Seems risky, im doing a horizontal scrog at the moment and hoping like hell to pull a pound in 5 weeks! maybe i should post some pics to a journal. Im surprised you pulled 20 oz from...