OK, had to tend to some crap for a few days. Let's see if I can catch up.
I am currently doing almost an ounce per SOG plant with a 5 day veg.
Sounds good.
During veg, the plants are Uncle Ben topped and the cuttings become clones. So the idea is to have a motherless perpetual with 48 plants. Not sure if that makes sense, since I have no experience cloning or growing big plants.
Topping plants in a straight SoG op is not a good idea. You're eliminating the top cola. If you top the plants, they will branch out & grow a number of smaller terminal coals on each resulting stem.
I was going to do it in 6" RW cubes (3.5L) volume, really for the lack of something better. Hydroton doesn't hold enough water for safety margin for me and I don't want to clean it, coco doesn't seem ideal for flood and drain, can't get fytocell and sure-to-grow look to be crap. What's my best bet for these bigger plants in a flood and drain?
6" RW cubes will do fine, as will pots of RW floc. Just be careful with watering when the plants are still small. RW has such a high water holding capacity that small plants might suffer from overwatering issues if watered daily.
Hey medicine Mary,
I flood and drain coco with no issues.
I lay a layer of floc (bottom 8cm) of my pot.
Works great for me.....
Sounds OK, though I'm not a fan of coir. Organic matter will break up when repeatedly exposed to H2O2 and the bits will get loose in the system. You've solved that problem by putting some RW in the pot bottoms, though.
Hey al, i went to my local hydro store to get some flock, there asking me if I want repelant or obsorbant rockwool flock.
Do you mix these two together for better drainage? I know you don't use flock for flowering anymore but I wanted to know if you were using a mix of theses two when you used to use it for flowering? You have written that flock holds too much water so this could help? Also I was at the hardwear store looking at insulation and came across rock fiber insulation. It looks exactly the same as rockwool slabs. Was thinking of trying test to see if it would work as well. Any thoughts? Thanks.. Nice to see you still kicking around.
Normally, you will want only absorbent RW floc. You could conceivably mix absorbent and repellent floc, but I've not tried it and can't really advise you on the mixing ratio. 'Rock fibre' insulation very likely is what growers know as rockwool. It's probably the water repellent variety, though- by itself, in slabs, would probably not be suitable for hydroponic growing.
Thank you sir, think I'll go ahead will invest in a
Digilux bulb and see how it treats me. Also went ahead and ordered a lux meter, sounds like a wise tool to keep on hand. Along with the dim feature on new Lumateks, there is also an overdrive (or SUPER LUMEN!!) setting… which is probably good for burning bulbs out a lot faster. I've just kept it on normal 600w output so far.
The Digilux lamps are kinda pricey. Expanded spectrum lamps are not necessary for flowering. Plain old HPS streetlight tubes will work fine. I prefer name branded lamp tubes i.e. Sylvania, GE, etc.
I'm with you- I would not use the 'overdrive' function of the electronic ballast.
Lux meters are handy, mainly as an aid in judging when an HPS tube is worn out. When you put in new tubes, pick a convenient spot and measure the luminous output. When the measured output is down 20%, replace the lamp.
While we got ya here, thought I would bug ya about batwing reflectors. I'm thinking of making my own to fit over my cooltubes for a better rectangular spread (pretty much the same dimensions as a medium adjust-a-wing). Would you say common hardware store mill aluminum with a high-heat matte white paint job suffice? Or would it be a better idea to go ahead and spend the extra cash on the reflector specific 'german aluminum' material (shiny aluminum with dimples) from the hydro shop? I mean, aesthetically that would be less ghetto looking
I'd prefer the dimpled aluminum to a painted reflector. In high-humidity environments, the paint will eventually start peeling.
just curious, why would you not want to flush plants?
Because it has no effect on the taste of the buds.
i notice when i flush my plants the smoke tastes much better. i have harvested a few plants without flushing(same strain) and the smoke tasted like chemicals.
By any chance, had those plants been fert burned? That's the usual cause for that sort of problem.
i know a flush isnt needed, but shouldnt flushing be a requirement to grow premium dope since it improves the flavor?
A plant that hasn't been fert burned will yield perfectly fine tasting buds.
haha, good luck convincing al of
that! you might want to go ahead and bring up the importance of a 'good cure' while your at it
Yeah... 'curing' is just not necessary in a modern grow op. That's a practise that you'll find described in VERY old grow books- we're talking early 1970s. Back in the day, growers used to leave quite a lot of fan leaf matter in with the buds. Aging or 'curing' as it were does break down chlorophyll, which is important if you're smoking leaf. Buds by themselves have a very high resin to vegetable matter ratio and a lot less chlorophyll than fan leaves. There's no need to 'cure' buds. These days, fan leaves go to the compost- problem solved.
lucas works good for young plant but as soon as they get bigger you will run into a def. and lucas swears by not useing supliments and thats BS GH has a online nute
calculator to custom build a feeding program. if you mix 1300ppm in 55gal of water and a day later its 40gal and 1400ppm your going to add back water to get back
to the 1300ppm but at the same time, if this is the case then I believe your ppm is to high to start with. If you start at 1300ppm and lose 10gal and its still 1300ppm
then I think its a perfect ratio, now plants will take more or less through there life span so get a calander and chart every feeding and change so next time you can follow
or correct your feeding. I use 1300ppm as a nonfiction number.
I'd follow the mfr's mixing instructions.
1300 is a bit too strong. Remember, these are plants, not V8 engines. There's 'not enough,' 'just right' and 'cooked.' 'More' is not always 'better' unless we're talking about light. Plants will do fine at about 800-1000ppm.
If you mix for 1000 and find the TDS has jumped up when some of the water has been used, yes, you can add some plain tapwater until the TDS drops back to 1000 (and then correct pH). What's happening is that the plants are proportionately using water faster than the nutes in the solution. You might try mixing for a lower TDS, perhaps 800ppm.
hello family, DR. Al B. Fust, got a question for ya, i dont have much room so i built a home made box that's 4 feet long, 4 feet tall and two and a half feet wide. i had a t5 8 bulb light from my first grow about 2 years ago. i have been studing your style and i have came to the point that i will take cuttings from my mom's every 8 weeks. will the moms be ok under the flo's? or do i need to spend more money on my light bill? what size light system should i get if i am to spend money? a 150, 250, 400 or 600 watt light for 24sqf
It depends on how fast you need mums to regrow after taking a batch of cuts and how many cuttings you need to make. 8wks is a long time between batches of cuttings. Fluoros may be sufficient in your case, but one thing you won't get with mums under fluoros is big, thick stems. If your mums don't regrow fast enough, look at a 250W HPS or 175W MH.
I was told to dump my tank every week. Or atleast it was ideal. Do you think I am wasting my time/money Al ? I have been doing it this way for well over a year since I went to hydro.
It depends on the volume of your nute tank. If you have about 5L of tank volume per plant, you should be able to get through 2 weeks between tank dumps. Mind you, I'm quite sure your local hydro shop operator would have you mix new tanks every day if he could convince you to do it.
What are your thoughts on the whole defoilation debate for a full SOG table. I have had my best results doing 4 per SQ foot and removing all the large fan leaves by week 3 of bloom. There are some in here that seem to beleive we are hurting the grow by doing this. That being said they do not grow SOG themselves. Just curious as to what your thoughts were on the matter. Here are a few I did at 4 per foot and removed all the larger fan leaves. Averaged 30 grams per plant dried and cut.
Leave the fans on. Leaves are solar panels for your plants- they're responsible for making the sugars that build the cellulose plant matter. SoG trimming involves removing all the branching on the lower 1/3 of the plant, usually at the end of wk 1 & 3- any branch that's threatening to get more than about 1" long should be pruned off. However, I'd leave the fans on, for the aforementioned reasons.
Instead of a lux meter, you really want to get a quantum meter to measure PAR.
They are a bit more expensive that lux meters but it looks like some aquarium hobbyists were able to get a really good discount on one particular brand. I think we should look into something like this
http://www.reefland.com/forum/reef-aquariums/26252-group-buy-apogee-mq200-par-meter.html
All you really need for light measurement is a relative indication. Any lux meter is fine, as long as it is consistent. There's not much use for lux meters else than determining when a tube is past its serviceable life. Beyond that is splitting hairs. There IS a such thing as too much information.
Hey Al, was reading the
MSDS on 29% H2O2 (you do read the sheets on all your hazardous chems right?!!) and discovered that its biggest hazard involves contamination followed by rapid oxidization. How do you handle your 50% stuff?
Carefully!
I'm not sure what they mean by 'contamination followed by rapid oxidization.' An aqueous H2O2 solution, certainly when the water content is 71%, is not apt to cause spontaneous combustion of combustible materials.
How do you measure out small quantites of the potent stuff without contaminating your source?
By tipping it into a clean, dry graduated measuring cup. Very small amounts can be drawn out with a 10ml or 60ml syringe.
Have you ever had any issue with spills?
Yes. Spilled H2O2 should be flushed away with a large volume of plain water. If your grow room doesn't have a resilient floor where flushing is possible, while wearing rubber gloves, mop up with paper towels, which are then placed in a large volume (say, a 10L bucket) of water, then clean up the remaining spill with a wet sponge. Rinse the sponge out immediately under a running tap and repeat until the H2O2 on the surface is dilute enough to be safe. It's always smart to use safety goggles and nitrile rubber gloves when handling high strength H2O2. A splash in the eye MAY result in permanent eye damage but WILL be painful as hell.
I was talking to the local hydro shop owner and he told me a story of a bottle of 29% he sold that didn't have the cap entirely on. It was leaking out onto the customer's back seat. The customer was driving home, heard some noise, smelled the smoke and watched as his rear seat effectively melted down. I don't expect that to happen to me but I also don't want to go blind just transferring 6.8 mL into 4L of water. Am I being over cautious?
29% isn't especially strong, and as said, with 71% water content, isn't apt to cause spontaneous combustion. I honestly don't believe his story. The 29% stuff
can cause skin irritation and eye injuries, though. I think he may have been a bit hypey/overcautious with his advice, but all the same, it's not wise to splash the stuff around.
Thanks man! I ordered the lux meter (same one they sell on HTG) from china for 15 bucks a few days ago… once that one breaks I'll def invest in the quantum meter
Meh. As said, any lux meter that reads consistently is sufficient.
all i can get is 29% at the local shop and ive never been burned by it yet so id have to call BS on that story, it is hazardus just dont believe its that strong
Agreed.
stick your finger in the bottle and count to 20!!!
Uh, no. 29% will definitely cause skin irritation, particularly if you get some under a fingernail.
Al B. I never thought I'd get the chance to thankyou for your tutorials@ on a harvest every 2 weeks, how long are you drying & curing? Or do you just smoke it right off the stalk?
My buds are usually dry in 3 days, using my bud dryer. Ready to smoke as soon as the stems snap.
lol I love the week baron thread!! I hope you'll be back to visit more often.
thanks for all the knowledge
You're quite welcome. 'How Not To Grow Dope' IS a good bit of fun. I just wish I had more time to write stuff like that.