Hydroponics

Mr. Maryjane said:

okay, I'm bout to start a, possibly, large scale DWC grow in a couple weeks. what I can't find is anything specific on nutes. what are the cheapest, but still good, nutes. and how much should I add per gallon

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You want to use hydro nutrients, so find your nearest hydro shop, and see what they carry. General Hydroponics (GH) Flora 3-part is a good one.

HTH

Blue Lightng said:

How do you grow hydro do i need a better system i try it befor didnt work i start it in a cup it grew but the leaf turn yellow brown thin it die so i shop grew

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Well, if it was easy, everyone would do it.

THANK YOU, POTROAST!!!! you have insured that by fall I will have more pot than I know what to do with.

Out of curiosity for later on in my grow, when should you usually change the light cycle to 12/12? what should the plants look like? And are there different reasons for switching them at different times during a grow for different results?
https://www.rollitup.org/grow-journals/45296-full-led-grow-room-aeroponic.html

When you change to 12/12 depends on a few things, mainly the space you are working with. If you have a confined space you will want to switch over early while your plants are small to avoid your plants outgrowing your space while flowering. If you have a huge room you can wait until the plants grow large before switching. The bigger the plants when you change the photoperiod the more bud you will get (on average) since the larger plants can sustain larger flowers.

Lol, my room is about 7' tall. I'm using a aeroponic system that only has about 6" between the plants. I'm thinking that I may have do do some funky trimming later on in the budding stage to maximize the yield and keep them from getting all intertwined. I'll check back then when I'm sure I'll need help with the snipping. plus the clippings would be good for clones, cool.

When to switch to flowering is almost always a height consideration, but for your aero system, with plants close together, you may want to keep the plants smaller. Anything taller than 2 feet can cause problems with stability in an aero tube. You should consider support trellis, or high netting for plants to grow through.

HTH

potroast said:

You want to use hydro nutrients, so find your nearest hydro shop, and see what they carry. General Hydroponics (GH) Flora 3-part is a good one.

HTH

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Hey potroast, what would you have as a ppm for plants 30 days or so old using the Flora series?? VV

Well, that's an easy one! Whatever the plants can take.

That said, the answer is not so cut and dried. It depends on the amount of light they're getting, and the temperature, and if you're adding CO2.

Here's a general thumb rule:

40w/sqft 800ppm
50w/sqft 1000ppm
60w/sqft 1200ppm

And that doesn't consider supplements, which may decrease the amount of basic salts that you use.

HTH

Yet another question, lol. I've seen alot of ppl on here that go right into the blooming phase with no veg time. Is there an advantage to that except for speed? I'm just curious to know when a good time is to change my Light Cycle to 12/12. Am I looking for a certain amount of nodes on the plant, or is it a height issue? I know I can change them over to 12/12 whenever I like as far as height goes but should the leaf amount be taken into consideration. Height is not really an issue for me, my rooms over 7' tall, lol. Also, do the stalks continue to thicken during the bloom phase?

Ph, also. Whens a good time to sex the plants? Before the blooming stage or just after?

Right now you say you don't have a height issue, but later on you may be scrambling. Only 7 foot ceilings, huh? I'll bet your aero system takes up the bottom 2 feet, and the lights take up the top 2 feet, so now you've got 3 feet for plants and whatever. Like I said in post #128, you will induce flowering when your plants are big enough that after at least doubling in size during flowering, they will finish at your desired height.

HTH

lol, sorry bout that. I've read through this entire thread 3 times and my dumb ass must have passed over that 3 times, lmao. thanks anyway potroast

I've seen a lot of posts asking how much water a tray will hold. I just thought I'd share a bit of math.

To find how many gallons a given container will hold:

Length(in ft.) x width(ft) x depth(ft) x 7.5 = gallons of water
If the measurements aren't exactly even feet, then guesstimate.....1.25ft. 1.5ft. 1.75ft. etc....

Hope someone can find a use for this.

To find how much a tray/tank will hold you can also take H x W X L in Inches and divide by 230.4

Is it unusual for leaves to get frosty before the budding stage? I'm looking at my Texada Timewarps (sativa) with a 10x magnifying glass and they look like they're starting to get a little frosty, especially the smaller top leaves. And it doesn't look like dust, lol

Hey Pot Roast i have one for you ... first indoor grow ,i have 3 days old seedlings in rock wool cubes just did them with water and they are starting to push threw, when do i start nutrient , these seeds are special not bag weed so i dont want to screw up... anyone willing to hold a totally ignorant hand to prevent a heart atack would be appreciated .. cheers

I had to switch my seedlings younger than I would like (4+weeks) due to height - my grow room is also 7 feet tall, but with the light hanging, less than that. My first grow (only one was female) is probably going to push the light (tho I don't know how much stretch to expect from this 10 weeks) so I put the seedlings to bloom early in their ebb and flow - I could put them on the floor, but my grow stage setup was an Aero Garden and I was almost out of room at 4 plus weeks and pretty stretched. But as I am a noob, I am guessing about all this.

I found GH Flora series easier than some others to use. Great for a noob.

Here's my first shots for my grow j https://www.rollitup.org/grow-journals/52804-fromage-bleu-s-noobie-grow.html If anyone wants to tell me how tall that skunk #1 10 weeks old on the right is going to get, it would help me out. I got one estimate that it would end up with about an ounce. Need for mmj asap, so anxious to estimate.

I tried the GH Flora series too, but found it extremely gunky in my reservoir. Sinve the first 2 flushes and scrubbing the bottom of my rez, lol. I've switched to DNF A&B. Much clearer and more soluble than for Flora series. No gunk at all. It does work though, I just dont like having to scrub out my rez every 10 days or so, hehe

I will watch out for the gunk - my ebb and flow reservoir is kind of a drag - I will look into trying the DNF A&B you recommend. I like my bucket a lot for ease, but not sure it's ideal for growing clones in my space - once I have eight of them they are no longer easy.

Can anyone suggest the best "sweet" molasses-type bloom addition?

hey PR or anyone else that can answer this Q. how can i go from a 1" (supply line) pvc pipe to 1/4" drip line(going to my jets for an aero build), that i will be using for an experimental aeroponic build? what fitting do you suggest i use? also can you give me a link of where to buy one and what it looks like. thanks a buch..