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I do not recommend monkeying around with photoperiods- not for flowering plants and especially not for mother plants. Clones perform best in SoG when they come from thick-stemmed vigorous mothers. You get that with 18/6 or 24/0 lighting. Weird photoperiods tend to produce hermaphrodism in...

Whew. Finally a moment to breathe. New ballasts (really only needed new capacitors, but meh) are paying off in spades. Yields are back up to about .75z/plant, nice lumpy, dense buds. Also have started using Canna PK1314 again since Canna have posted some good instructions on how to use it...

About 400-500mm. If a cooltube or duct gets warm to the touch, you need more fan power or fewer restrictions in the airflow path. You need at least a thermostat to control the intake & exhaust fans. If you're running a dehumidifier, it can run on a timer to coincide with lights-off...

Yep, got some pricing on STG... about what I'd guessed. Loose fill version is about 30% cheaper than cubes. Loose fill STG is somewhat less expensive per L than Fytocell. Would like to get a bag of that to try out.

I get Fytocell for about $55/100L. After sampling some prices online, I think STG will come in about $75/100L, but we'll see.

That's not the only qwazy thing about the southern hemisphere. Stargazing northern hemi natives will immediately notice that the moon appears rotated about 60 degrees (depending upon your original northerly latitude & southerly latitude perspectives) counterclockwise. The moon (and sun, for that...

Working pretty well so far. The three STG trial plants are all doing better than the others in Fytocell. However, I tend to have problems with rosetting (stunting, failure of stems to elongate) this time of year as we head into winter. I suspect my lights-off temps are too low, touching 16C...

Haven't heard anything about that myself. There's an equally good chance that you don't have any powdery mildew because you're running a sulfur 'burner.' Sulfur 'burners' put so very little sulfur into the airmass that I would not expect it to alter taste at all. I put about 60g of sulfur...

Been nosing around on Bushmaster; apparently it does work for stopping vertical growth, but it's a bit pricey. If you just don't veg before flowering, you can omit it and speed up the process as there is no time in the growth cycle spent on vegging.

I liked it when he ran off into fluoride fucknuttery. Neighbours 3 doors down could hear me laughing. Did my 'tree-huggin' hippie crap' Cartman imitation (which is really quite good, you know). Thanks. :) Hasn't been asked. Use enough CalMag to bring the TDS to about 100-150ppm...

If the lemon juice has been pasteurised, it'll cause less grief. Should use the phosphoric acid stuff anyway, provided you can get it. You have a decidedly masochistic idea of fun. :D Well, that sucks a lot. Hope you're OK. Indeed. Glad you have good friends. Hope baby & mum...

Glad you'll be getting proper phosphoric acid based pHDown. Lemon juice will have pathogens in it, will cause you grief. You probably don't need CalMag. Also glad the room's coming along. Don't work so hard & long that you start doing crap work, tho. Yep, all that. You KNOW the HPS will give...

Have you calibrated the pH meter with (at least) 4.0 & 7.0 reference solutions? 9.2 is pretty high. However, I'd expect a rather high pH if you are seeing scale buildups. I would also expect a much higher TDS figure than 55ppm for the tapwater. You can get reference solutions for the TDS...

Eeek. Always build your op before you crack beans! Closets are not always a good way to go unless you can find a way to dump warm, moist air effectively. Best way is cutting a hole in the closet ceiling & dumping air into an attic...

hay folx. Harvesting time again for me, which naturally means I'm busier than a teenager in a cathouse on dollar day. Bear with me, back in a few days.

Hmm, OK... fine fellow at Ye Olde Hydroe Shoppe fronted me a sample bag of Sure-To-Grow cubes. Will give these a go in the next batch going in to flower.

The yellowing may look like underfeeding but it's actually caused by root damage. Without a healthy rootmass, the rest of the plant starves.

Way too much watering for rockwool. Plants are showing obvious symptoms of overwatering. This arrangement would probably work OK if you were using clay pellets, but rockwool saturates too easily both for drip irrigation & for 4x 3mins/day. If I were fixing this system, I'd run it as a flood...

one more time.

OK, this is annoying.. images keep disappearing from my posts. This image should be appearing in the above post