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stem rot? jiffys in rockwool cubes on slabs, i was watering the cubes every 2-3 days by hand but the jiffys hold more water then the cubes and have been staying wet. it has been 3 days since the cubes went onto the slabs and the slabs are still pretty moist... jiffys are still moist too, next...

https://www.rollitup.org/grow-journals/386178-gone-while-back-4000watt-sog.html

Well, after stumbling upon my first grow and being able to see all the pictures from years ago; I thought it might be a nice idea to throw up another one of these grow journals to maybe stumble upon a few more years down the road. Please feel free to comment! here is the old journal if your...

directly under the lights temps get close to 90 even 95(even with a fan blowing directly on the canopy) when the co2 is running.... if i move the thermometer away from the lights it drops to 80-85...... i dont see any slow growth issues.... where do you guys measure your temps from?

I have a hanna tri meter,when i try to test ph with it, it slowly rises for about 2-3 minutes till it finally settles.... is this normal? is it time for a new sensor tip on the unit?

im 7 weeks into flower and i realized one branch one one plant has developped a bunch of sacks..... i know its too late for it to do any real harm to any of the other plants.... but why would this happen to only 1 branch? i chopepd the branch and will add some pics of it soon.

still debating what mediums to use, either 6 inch rochwool blocks, or hydroton, with cocomat with small rockwool blocks on top....... id really like to use soem sort of coco medium without it being too espensive, any suggestions? 1000 watt hps light 4x4 table, i would ideally like to get 40...

anyone have some pictures of seeded females in late flower?

i have a plant about 45 days into flowering, almost done. along the branches, theres just these little tiny flowers, like max .3 gram. i was wondering if this is normal or are these supposed to fill out and get bigger? heres a couple of pics what im talking about ! last 2 pics are just for fun !

well maybe i should be in a construction forum for this, but i have a loft and id like th make a 8x6 foot corner sealed with walls, or something light proof, i will have a few holes with fans for ventilation etc, its important that whatever i build out of is light proof, not too expensive and...

if i were to flower my plants with 10 hours light, then 10 hours dark, instead of the usual 12/12. therefore making each day 4 hours shorter, would my plants flower faster? I know i would need a special timer that doesnt function on a 24 hour clock, and also the times i could visit my plants...

if i flower my plants 10 hours lights on 10 hours off, thereby making a 20 hour day instead of 24, would my plant flower faster? i know i would need a special timer to do this.... but this could possibly shave 2-3 weeks of flowering time? anyone ever tried it or have any idead about this?

why are f2 hybrids less stable? pros and cons of f1 vs f2 hybrid seeds? aside from the f2s being cheaper...?

I have been using a 600 watt eye hortilux bulb that has been used for about 6 crops before mine... I was told that after a few crops the light is no good anymore to produce buds even though it still lights up and is very bright? I am on my 5th week of flowering and wondering if you guys think i...

im 4 weeks into flowering and some of the hairs are starting to turn red.... about 20 % on the top couple of buds........ they still have not filled out yet but the hairs are turning red, when do the hairs usually start to turn red? before the calyxes develop or after? im growing skunk #1 and...

hey guys, i left my fan off for like 2 hours and when i came back one of my plants main cola was shrivelled up and light brown, it was dry to the touch..... it was only the top 1/3 of the bud thats all burnt, should i cut it off? or leave it? whats the best thing to do ?

well, ill explain my situation a little, i had a drip hydro system, but i had to get rid of it...... so i put my plants in the rockwool block into a tray with hydroton........ the plants started doing not soo good and i realized allot of the roots were dried and dying....... so id like to put...

im abotu 25 days into flower and my plants in rockwool are having ph problems, i water with ph 5.5 water with nutrients, and within a few hours the ph in the rockwool cubes is up around 7 again...... i dont know how to correct this or what to do!!! leaves are starting to turn yellow and im...

im abotu 25 days into flower and my plants in rockwool are having ph problems, i water with ph 5.5 water with nutrients, and within a few hours the ph in the rockwool cubes is up around 7 again...... i dont know how to correct this or what to do!!! leaves are starting to turn yellow and im...

can i use mollases when watering my plants in rockwool ? i am 3 weeks into flowering and would like to do everything possible to get those big juicy inflated looking calyxes ive heard of lots of earth growers using them, but not hydro... so im askin the question!