My 600 WATT CLOSET FLOOD TABLE GROW ( I NEED ADVICE )

[Humboldt14]

My set up is a

600 watt HPS. 32 inches above seedlings
4x4 flood table w/ 40 gal reservoir
6 inch carbon filter
15 Lowryder #2 x AK47
6 inch rock wool
Flood table every 3 days once for 15 min.
PH 6
temp 87 to 88 degrees day
temp 72 to 74 at night
lights on 18/6
when i flood the table water at 69 degrees
no nutrients yet.


• may 1 sat - germinating
• may 2 sun - moved most to 1inch rockwool cubes under florescent / PH ing 6 inch rock wool buy soaking in correctly PH'd water.
• may 3 mon - roots coming out the bottom moved to big 6inch rockwool cubes under HPS
• may 4 tue - flooded table at 10 am. all sprouts under Hps but 1.
• may 5 wed – full day of light (looks great)
• may 6 thur – 4 leaves (looks great)
• may 7 fri – little droopy, rockwool still little most, took mylar covers off rockwool to evaperate some water. 9:30 pm Flooded table.

why are some of my seedlings a little droopy and others not?

 

[UrbanAerO]

Using superthrive? I recomend looking into it, I use it throughout all cycles. A drop a gallon so 8 bucks will last a long time, always gives me 100% success rate. my last seeds I germinated in soil, then transfered to my own aeroponic boxes and now theyre ready to be put under my HPS in my flower tent, 100% success on seeds I ordered from single seed co, Cheese, NYC diesel, black widow, critical mass, devil, bubba kush and super silver haze. I wonder if thats the first time anyones ever transfered soil seedlings into an Aeroponic Box?

 

[desertrat]

couldn't see differences well from your pics but one thing is your temps are too high, especially for sprouts. you want to keep it below 80f.

 

[Humboldt14]

couldn't see differences well from your pics but one thing is your temps are too high, especially for sprouts. you want to keep it below 80f.

would the temp be causing some of there leafs to droop a little?

 

[desertrat]

yes, drooping is one of the signs of heat stress, especially if the temperature is drying out your growth medium. don't do hydro at all but i thought people flooded their tables more than once every couple of days??

 

[Humboldt14]

thats true but not this early on do to the fact that 6 inch rock wool retains alot of water, typically you want them to look a little for water rather then over watering which is common with these big rock wool blocs.

 

[desertrat]

overwatering looks more like curling and underwatering/heat stress looks more like drooping. other things can cause drooping but those are unusual.

 

[greengiant31]

i would root those little ones through that rockwool with a lower intensity light, perhaps some t5 flouros, once that they start to take off with a few more sets of leaves i would use the hps at 3ft away from plant tops for a few days before lowering it down.
i have never used rockwool in a flood table before, i use hydroton clay pebbles and flood every 3 to 4 hours depending on plant size and a couple of times through the dark period on the 12/12 cycle.

 

[Humboldt14]

i would root those little ones through that rockwool with a lower intensity light, perhaps some t5 flouros, once that they start to take off with a few more sets of leaves i would use the hps at 3ft away from plant tops for a few days before lowering it down.
i have never used rockwool in a flood table before, i use hydroton clay pebbles and flood every 3 to 4 hours depending on plant size and a couple of times through the dark period on the 12/12 cycle.

yea i would have used hydroton clay pebbles but i was a little miss informed when i bought this set up from the hydro store. I live in a state were its hard to ask questions about stuff due to the fact that its real illegal here, so people dont talk much when u purchase it.

 

[Touchet]

I use rockwool in my E&F table.

I flood three times during the light cycle for 5 minutes each. These feeding are spaced 5 hrs apart. I use Dutch Master nutes cause their interactive online nutrient calculator makes getting the ppm correct a snap. I also use the T5 Feliz fluro's for vegging. They have great lumen output and can be kept within inches if not closer.

Mine go from a youngster on the E&F table, to getting spiked as a teen. I should also mention they start under 150 watt Feliz 6500k bulb and then graduate to the 250 watt Feliz across the room.

Use your 6" cubes and buy some hydroton pebbles. Then put the cubes in 10" square mesh pots. Fill remainder of tank with pebbles around the pots. You use a little less hydroton that way as well as not needing to fill the whole table with pebbles from the get go. The 10" square pots have plenty of room to space out the purchases between pay checks if need be. So to clarify, I fill the pots then wait for tips to show out the sides, then I fill the rest of the table even with the top of the cubes/pots.


If you go with square pots from the get go, you'll use a little more space, less plants, more time LST, more than likely with your set up, a slightly higher yield. One of the great things about a table that size is the ability to move the plants around.

 

[Humboldt14]

I use rockwool in my E&F table.

I flood three times during the light cycle for 5 minutes each. These feeding are spaced 5 hrs apart. I use Dutch Master nutes cause their interactive online nutrient calculator makes getting the ppm correct a snap. I also use the T5 Feliz fluro's for vegging. They have great lumen output and can be kept within inches if not closer.

Mine go from a youngster on the E&F table, to getting spiked as a teen. I should also mention they start under 150 watt Feliz 6500k bulb and then graduate to the 250 watt Feliz across the room.

Use your 6" cubes and buy some hydroton pebbles. Then put the cubes in 10" square mesh pots. Fill remainder of tank with pebbles around the pots. You use a little less hydroton that way as well as not needing to fill the whole table with pebbles from the get go. The 10" square pots have plenty of room to space out the purchases between pay checks if need be. So to clarify, I fill the pots then wait for tips to show out the sides, then I fill the rest of the table even with the top of the cubes/pots.


If you go with square pots from the get go, you'll use a little more space, less plants, more time LST, more than likely with your set up, a slightly higher yield. One of the great things about a table that size is the ability to move the plants around.

dont your 6 inch blocks get water logged flooded that many times a day?

 

[Humboldt14]

dont your 6 inch blocks get water logged flooded that many times a day?

 

[Touchet]

dont your 6 inch blocks get water logged flooded that many times a day?

I have a lot of air movement in my area, a LOT! Separate fan for each of the two veg trays, And there are two fans in the flowering chamber under the plants that blow straight up as well as (2) 4" air ducts that run straight from the a/c of the home. I have a Dayton Blower pulling air through a 12" carbon filter in the flowering chamber. An oscillating fan in the room moves all the air around. Every grow area is different, you need to monitor your heat and air movement closely to see how fast your cubes will dry out. I tested my room before plants when in it. The cubes have about 10% of the moisture left over when the next feed happens. If you want them to dry faster, remove the wrapper from one of the cubes and test it.You want the cube to be almost dry, just the very bottom little bit should be moist before you flood it again. If you were using pebbles I would say test it the same, it never hurts to be cautious.

 

[Touchet]

In the pebbles your roots will be insane, word of caution. these are 4" cubes in a 10" pot, plants were trained with a screen then the screen removed to ease trimming, etc. The plant doesn't reach the edge of the table yet but the roots are way past it, so these are almost 20" from main stem.

 

[Humboldt14]

how do u put pics in reply? I am trying to show u some better pics of my seedlings. never mind just figured it out. what do you think? heat?

 

[Touchet]

how do u put pics in reply? I am trying to show u some better pics of my seedlings.

I st up a photobucket account and it makes the code for me. To use the site you need to click insert image on the tool bar and find the file on your comp to display it.

 

[Humboldt14]

what do u think of the seedlings? the way they look? I just got the temp down to 82 from 89.

 

[Humboldt14]

I st up a photobucket account and it makes the code for me. To use the site you need to click insert image on the tool bar and find the file on your comp to display it.

they dont look right???????????????