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Flood and Drain Question
Posted 17 December 2008 - 12:16 AM
I recently transferred my rockwool cubes which I planted the seeds in into the hydroton. I was told to run the pumps for 5 minutes every hour. How high up on the baskets should the water be getting? When the trays fill, they only fill to about a half inch from the bottom of the baskets. This doesn't seem high enough to me, the little rockwool cubes are like 4" up, how will this water reach them?
I have been told that hydroton leaches the water up. Is the 0.5" up sufficient enough for the hydroton to leach water all the way up to the roots of these seedlings? Or should I be running the pumps longer?
Similar Topics: Flood and Drain Question x
Posted 17 December 2008 - 12:20 AM
Posted 17 December 2008 - 02:13 AM
Posted 17 December 2008 - 03:26 AM
You may in fact be overwatering them which is why the smaller ones are dying.
I run an ebb and flow system and would flood it every 6 hours for about 15 minutes. The hydroton will stay moist enough for the plants to flourish.
Also do you have anything on the botton of the baskets to prevent the roots from growing everywhere in your tray?
if not you might want to add hydroton around the baskets too so the light wont kill the roots.
Posted 17 December 2008 - 09:20 PM
No I don't have anything at the bottom of the basket. I was told to trim the roots. First when a few long ones start coming out, cut those off. Then the plant will be forced to expand its other roots to get water instead of relying on those inefficient long ones. This way the plant will have a more even, stronger system. The second time you trim and will force the plants roots to stay compact so transporting between trays would be no problem (i.e. roots don't go all over the table).
Posted 17 December 2008 - 11:52 PM
Posted 18 December 2008 - 01:10 AM
Once you see roots below the pots your level wont need to ever touch the HT cause the roots will be in the solution.
Small plants at that stage sometimes need a little help by just adding water over the HT 1-3 times a day.
Floods need only be done when lights are on too.
Posted 18 December 2008 - 01:39 AM
Posted 18 December 2008 - 05:14 AM
I would say that may depend on how you arrange the trays,you have the same size and four of them?
Hey JonB...I just ordered the exact sime size in ebb and flow trays and was wondering how to set up my lighting scheme...4 X 600w....2 X 1000w..5 X 400w etc...what do you have above your ladies?
If theyre all lined up,more lights may be better but in a large rectangle i would say a 600 under each would be best unless you plan to grow taller plants then the 1Ks would be my choice.
600W systems IIRC have a better conversion for power to lumens but they also have more limited bulb choices and some "E" ballasts wont work with HPS and MH.
Posted 18 December 2008 - 06:59 PM
ocitown, I have the flood going twice during the dark. Though this may be pointless because they aren't leaching through their roots at this time. Can it hurt though? Thanks for the tip about the smaller ones, I'll try that hopefully it's not too late.
As for dank daddy's comment about only running the pumps every six hours, do the rest of you guys agree or do you think it is okay for me to be running every hour during light.
Mothers Nature, I have two 4'x6' beds in my veg room and the other two my flowering room. So for my veg room I have two 200W compact fluorescents over each bed. For my flowering room I have two 600W high pressure sodiums (with digital ballasts) over each bed. And for all of my lights I have pebbled metal bat-wing reflectors.
Also, in the future I want to add some T8 fluorescents around the beds, to give light to some leaves that you might lose otherwise.
Posted 29 January 2010 - 05:40 AM
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