Green Crack 2x1000w 4x8 tray Rockwool grow

heat? or over watering?

fdd2blk said:

heat? or over watering?

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Temps are fine...well under 80 degrees. Prob a steady 78 degrees in the room.

I'm running water for 15min every three hours. I defanately was over watering when I had 70 gallons watering these cubes. I've learned with RW they like to be really wet down low and progressively get dryer as you get to the top of the block. As my res got lower from watering the plants the plants improved. Top of the block should always be damp but not soggy like the bottom. Firm block up top for sure.

The GC clones are larger mirror images of their shitty selves from when I got them. That one WW that looks a litte funny...no clue man. I might move it to the other end of the tray. I have a slight slope so the water drains a little better. This ugly WW is at the deep end.

Overall pretty happy but not dialed just yet.

DubsFan said:

Temps are fine...well under 80 degrees. Prob a steady 78 degrees in the room.

I'm running water for 15min every three hours. I defanately was over watering when I had 70 gallons watering these cubes. I've learned with RW they like to be really wet down low and progressively get dryer as you get to the top of the block. As my res got lower from watering the plants the plants improved. Top of the block should always be damp but not soggy like the bottom. Firm block up top for sure.

The GC clones are larger mirror images of their shitty selves from when I got them. That one WW that looks a litte funny...no clue man. I might move it to the other end of the tray. I have a slight slope so the water drains a little better. This ugly WW is at the deep end.

Overall pretty happy but not dialed just yet.

Click to expand...

Just checked on the room. Temps are mid 60's on a relatively cool night.

PPM's were too high. My ppm's rise as the water evaporates and what not. This a.m. my res PPM was 1800. Since I'm not running a full res yet I added about 20 gallons of tap water and that brought it back down to about 1000. Plants still look pretty good. Hopefully the smaller ones play catch up. Some are twice as big as others.

Edit - Tried to fix these photos so there won't be and duplicates but I suck...you get the picture. No pun intended. Of to Vegas Bitches. I'll be checking in for sure.

Slowly but surely becoming more comfortable with this grow. I'm almost positive I was cooking my plants. Just running my nutes/water mixture too strong. Luckily the DP White Widow still grows through these turbulant times. The Green Crack however is very sensitive in my opinion. I decided to pull them from the tray. I picked the best two plants and yanked a few cuttings off them. Once rooted a buddy will veg them for me. I don't have my veg/mom set up dialed just yet. Ok well many would be happy with it but I'm not so it will have to wait.

Here are some updated pics. I'm really stoked at the growth. As you can see from the pics they are filling out nicely. They are about 12 days old or so. Just went from 24/0 to 18/6 and in a few days when I return from Vegas I'll probably go 12/12.

Half of them are this size. The other 5 are a little shorter but still nice and dense. I need to learn how to work this new camera better so I can take shots while in the tray with the lights on.



Sort of an underneath shot.



Here are some shots of what I'm hoping I will not see anymore of. All these odd coloring and curling. With my lights 1ft off the canopy and a fan or two sweeping on and inbetween the lights and canopy it's not a heat issue. My watering schedule is very standard for RW. Has to be too hot of nutes...


More shots of some fans to show the problem.





And here lies some fresh GC cuttings. I haven't cloned in months and my old set up was outdoors which is fine for the summer. I opened a closet I never use and found this perfect little shelf just sitting there. Install time was 3min.



Any thoughts? I'm hoping I've moved on past cooking my plants. Previous res PPM was 1500-1800. That's high according to my buddies. What I hear for younger plants is around 1000ppm or so. Right now I'm under 1100.

I think the overall growth looks good. I like em' dense like this.

nice thick stems.

very nice set up. Scribed......
plus rep
THose plants look very healthy.

ur buggin if u think u got many problems. just let em grow. ur shit looks really nice to me.

looking nice

really nice look baby plants they are so cute!! i know i know how gay is that.. but im girl i cant help it. lol

skate4theherb said:

really nice look baby plants they are so cute!! i know i know how gay is that.. but im girl i cant help it. lol

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On my brothers I phone...it's killer. How tall should I go before I flip them? The WW are known for growing all the way through flower...by Monday I'm at two weeks of veg.

Very nice job. I do almost the same set up but 8 times as big.... if i may make a suggestion or two. I found its best to cover the tops of the cubes. ive been using white plastic over my entire trays, with slots cut in for cube placements. Roots love this... no light shinning on them. Also, its usually better to put your co2 lines higher then where they are. co2 sinks. Most of your co2 is probably going straight down to the ground. looking forward to seeing more pics.

To find out how tall they should get. you should do a bit of subtraction in your room. go to a wall in the room. from the ceiling down take a measurement at where the bottom of your light hood would sit if maxed out. then go down another 18 inches or so. this would be the top of he plants when finished. from this line you need to do some homework. any ideas how much these plants of yours grow once flipped?? usually 12 to 18 inches... so go down another 12 to 18 inches.. this new line should be about where you would want to flip the plants to flower. also take into consideration if you are trellesing them.. let hem get a bit taller cause you will be bending them over. hope this helps

Great job so far. My only recommendation would be to group the cuttings closer together while they're small and then spread them out when they absolutely need the second 1000W light. Other than that they're looking good. Do you plan to flower them until harvest in just those 4" cubes?

Proper setup, subscribed.

That dual tube a/c should easily be enough to cool 2k that's exhausted anyway I can cool 2k with a 5kw window unit and they're vertical open bulb not even exhausted outside. (barely squeak by but it works)

Do the ducting and hoods get hot to indicate you don't have enough airflow?

Hope you are growing a bushy indica. You have no head room dude. Good luck..... I would fem, twice or more... I have never seen a plant under 2 feet really 3+ that gave enough bud to make the bills worth the trouble. So your grow looks ify as it stands. You have what, maybe 24" of grow below your lights if you move them all the way to the top.. Again good luck....

DubsFan said:

Ok so they'll be growing on Saturday. I guess this will be a journal/build out thread.

The room is sealed. As with most indoor set ups there was some basic fab work necessary. Let's not even talk about building a whole new fucking room for this. I've got plent of room to double this up but I want to make sure I don't suck at this hydro shit first. Co2 tank is hiding somewhere

My babies are waiting for me and will be in the tray on Saturday.

Here is the sort of finished set up. Nothing is tied up all pretty but you get the idea.

That fancy rack is 2x4's and some paint. I couldn't bring myself to pay $300 for a rack. Used some wood I had laying around. Those long side boards are raised to fit into the trays grooves so it won't slide off.

Since I'm sucking air from outside to cool my lights I don't want it to get dusty in there. In 30min without this filter it got surprisingly dirty. I made this little frame thingy and cut a cheap filter to fit.

Fancy...

I bought this used portable AC unit for a $100. No ducting and she's a little tired. I don't know if I'll make it through summer with just her. Anyway, her holes for the ducting weren't exactly 5" so lets just say I made 5" ducting work.

I popped the back of the unit off to get these in right.

She works. After a few hours the room was at 82 degrees. Not great but it might work. I don't know. Never grown indoors I've got a wall mount fan and will definately have at least another floor fan. The wall mount doesn't cut it.

So thats the basics. Can't wait to get the kiddies in there. In a week or two when they're rooted out of the bottom of the 4x4 blocks they'll go on top of 10"x36" slabs.

12 plants total.

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Is there anywhere to get these still???????????????????????????????????

clone only,,,,,,,,, Hey you should consider trying to get your AC service. THey can recharge them...... May cost bit, but much less than purchasing a new unit.........

OregonMeds said:

Proper setup, subscribed.

That dual tube a/c should easily be enough to cool 2k that's exhausted anyway I can cool 2k with a 5kw window unit and they're vertical open bulb not even exhausted outside. (barely squeak by but it works)

Do the ducting and hoods get hot to indicate you don't have enough airflow?

Click to expand...

Thanks dude...

So far the AC is doing fine. We'll see how it goes long term. Yeah I probably could have vegged under one light. Regarding hood heat, there is litterally none. With fresh air intake and that fan sucking out litterally the hoods are room temp. I've got the lights a foot above the canopy with no problem. I have two friends with this set up and they don't raise or lower their lights. They said the 1000watters penetrate well enough to not allow any stretch even when at max height. His yields are huge so who am I...but for now I'm going to adjust my lights.

As far as ceiling height...the plant in my avi is an outdoor grow of the exact same strain from the same mom. The difference is these are topped and indoors. If my problem is big fat colas pushing up so high I think I have a good problem. I'll just tie them down...it's a plant. It will be fine.

Most have rooted through those cubes. On Tuesday or Wednesday they will all go on top of 36"x10" Slabs. Normally with 12 plants it's two per slab but I have ten plants so there is plenty of room.

My liver hurts and I'm going to burn a big hole in my pocket tonight.

Nice setup! I grew in RW for years till I discovered that Hydroton in buckets in the same setup actually
gave me better results. Its alot more forgiving (RW is easy to oversaturate, so minimal - infrequent watering).
Not to mention what do do with all the used RW, the expense, PH adjusting/pre treatment, etc. If you even
SLIGHTLY over saturate your cubes and don't allow them to dry out some in a flood tray, you are depriving
the plants of oxygen, so only water and inch deep or so on the cubes, and halfway up a slab, only as often
as it takes - allowing them to get pretty light and dry. Also Dont water at night !

Do yourself a favor and throw one of your next clones in a 10" square bucket with hydroton - you'll be amazed !