View Full Version : Ebb and flow flood schedule conflict of opinions
Stormcooker
10-12-2005, 08:46 PM
Ok Ok, there are many factors that affect the best flood and drain schedule. Some set-ups would require more frequent floods than others. Some strains may benefit from more or less frequent floods. Root space, aeration and air-flow, use of C02, strength of nutes, grow medium type, these are all things that determine best flood schedule.
I want everyone to give their opinion on this. Tell us YOUR success you're having, your grow medium, your flood schedule dark and light.
I use Hydroton, 6" x 6" x 7" square grow pots. I flood evry 3 hours for 15 minutes in light AND dark cycle. Most would disagree with this but I dont see anything wrong with it since my set-up and plants are thriving with it.
Cut and paste this and fill in the blanks please. I want to get a poll going and maybe come up with some kind of happy medium.
Flood frequency and duration in LIGHT:
Flood frequency and duration DARK:
Grow medium:
HYdroponic system:
Wattage of light:
grow pot size:
reservoir size in gallons:
number of plants:
Veg and flower time:
Strain type.....max yielder? nute-burn sensitive?
Extra air-circulation to root zone? fans directed at root zone?
Co2 usage?
Your answers will be benefitting many ebb and flow growers and I will post the results in true poll result form. If you have any links to this kind of information please include it in your answers. All opinions and theories will be appreciated.
Stormcooker
10-12-2005, 09:40 PM
also include grow space dimensions please
Stormcooker
10-13-2005, 06:30 AM
hmmmmm
Hi Tech Hydro
10-21-2005, 03:43 PM
Flood frequency and duration in LIGHT: Flood every 3:15 for 15 min
Flood frequency and duration DARK: Flood every 6 hours for 15 min
Grow medium: Vermiculite/Botanicare blend
HYdroponic system: Hydrofarm ebb and flow, 8 pot
Wattage of light: 400watt HPS
grow pot size: About 1/2 gallon
reservoir size in gallons: 10 gallons
number of plants: 16
Veg and flower time: 1.5 weeks so far, plan on 3 veg 5-7 flower
Strain type.....max yielder? nute-burn sensitive? Super Bag Shwag
Extra air-circulation to root zone? fans directed at root zone? air bubbler in Resv and fans on canopy
Co2 usage? No
Do I win a prize for being the first and only response?!? Anyway I think it's a good thread storm.
Stormcooker
10-25-2005, 02:35 AM
thanks for the reply. Your answeres are very helpful to me and others. Your prize? a good crop this grow and forever after.
turtle420
10-25-2005, 11:38 AM
Hey storm,
You seem to very very pro-ebb&flow... I'm going the NFT way on my 1st grow, but I'd like to know why you like e&f so much. I'm not dissing you or anything
But, I'm guessing, if you're like me, you're thinking about your e&f about 20 hours of your day... so I guess you have some ins and outs thought out.
Did you plant that kick-ass system you built yet?
Peace out & flow,
-turtle420 :cool:
nexusmick
02-18-2010, 09:11 AM
Flood frequency and duration in LIGHT: Flood every 3:00 for 3 min
Flood frequency and duration DARK: N/A
Grow medium: Hydroton Clay Pebbles
HYdroponic system: Esoteric ebb and flow, 2 pot
Wattage of light: 450watt HPS
grow pot size: About 1/2 gallon
reservoir size in gallons: Approx. 6.6 US gallons = 25 UK litres
number of plants: 4
Veg and flower time: 1.5 weeks so far, plan on 4 veg and 5-8 flower
Strain type.....max yielder? unknown
Extra air-circulation to root zone? fans directed at root zone? H2O2 in res and fans on canopy
Co2 usage? No
TerraPharma
03-01-2010, 04:28 PM
Flood frequency and duration in LIGHT: 15min every 6 hours
Flood frequency and duration DARK: 15min every 6 hours
Grow medium: rockwool/Growstone
HYdroponic system: Ebb and Flow DIY
Wattage of light: 600 + cfls at base
grow pot size: 1 gallon
reservoir size in gallons: 20
number of plants: 1
Veg and flower time: 25 days veg/ 35 days (and counting) flower
Strain type.....max yielder? nute-burn sensitive? AK48
Extra air-circulation to root zone? fans directed at root zone? Fans at roots
Co2 usage? No
iRayone
03-31-2010, 02:41 PM
Flood frequency and duration in LIGHT: 4 times per day 15 min. They say don't water with lights out???
Flood frequency and duration DARK:4 times per day
Grow medium: bontanacare 4-6 waterings ready grow
HYdroponic system: eeb flow
Wattage of light:600
grow pot size: 1 gal
reservoir size in gallons:30 gal
number of plants:14
Veg and flower time: veg 6 weeksflower 8 weeks
Strain type.....max yielder? nute-burn sensitive? no
Extra air-circulation to root zone? fans directed at root zone? 2 fans
Co2 usage?dry ice at veg fans lights out
raise TDS EC from start 300 ppm raise each week 100 ppm to max out at 1200 ppm
demoreal
03-31-2010, 03:37 PM
Flood frequency and duration in LIGHT: 1 time 15min
Flood frequency and duration DARK: N/A
Grow medium: rockwool 6" inch cubes
HYdroponic system: ebb and flow
Wattage of light: 400
grow pot size: 6" cubes
reservoir size in gallons: 10 gal
number of plants: 8
Veg and flower time: veg=1 week / flower = depends
Strain type.....max yielder? ounce to ounce and a half a plant
nute-burn sensitive? some strains
Extra air-circulation to root zone? i have a aerator in res
fans directed at root zone? no , bellow plants and right above
Co2 usage? no, if i did i would flood twice a day.
demoreal
03-31-2010, 08:53 PM
this is a good thread.
People fill this out.
xbrad420
07-12-2010, 04:12 AM
Flood frequency and duration in LIGHT: Every 6 hours, for 5 minutes
Flood frequency and duration DARK: N/A
Grow medium: Rockwool, Coco
HYdroponic system: Ebb n Flow
Wattage of light: Grande
grow pot size: 4" RW every 6 inches in a 2'x4' table
reservoir size in gallons:14 Gallon
number of plants: 18
Veg and flower time: 6 week/9 week
Strain type.... NYCD (High yielder, very sensitive
24" High power fan directed at table, they love it
Co2 usage? Never
SpaceNeedle
07-12-2010, 01:29 PM
I have put pots similar in size to what you have, placed them on an E&F tray, and ran a 1/4" tube to each plant and just pushed it into the top part of the hydroton and let her rip for 24/7 and it worked as well as E&F.
In E&F I water every 4 hrs for 15 min.
sn
Prodaytrader
07-13-2010, 06:34 AM
Flood frequency and duration in LIGHT: Flood to depth of 4" every 3 hours, takes 90 seconds to fill, about 2 minutes to drain.
Flood frequency and duration DARK: same
Grow medium:hydroton, switching to coco this week, so may change flood freq
Hydroponic system:custom
Wattage of light:600hps, 6x24"T5ho veg
grow pot size:6x6x7 square, 4" flood vents
reservoir size in gallons: aprox 25 gallon
number of plants:4-6
Veg and flower time:4 veg 9-12 flower
Strain type.....max yielder? nute-burn sensitive? white widow, unknown yield, have not burned a single leaf yet
Extra air-circulation to root zone? fans directed at root zone? 6" inline ac duct fan sucking ac directly to flood table, duct partially sits across flood table further chilling water
Co2 usage? no but I really like that dry ice idea I just saw earlier.
I have played, let's call it for what it is, wasted all kinds of money on all sorts of hydro concepts. For some reason the idea of spending 400 dollars on a pre built systems was too ludicrous, but for some reason ill go on the hook for well over 2k from HD and Lowes. Ebb and flow was by far the most effective, simplest and straight forward design of all the systems I played with. I tried high pressure aero, low pressure aero, foggers and bubbleponic systems. I still clone in bubblers, but for anything other then cloning, the rest of the systems are either too complicated, not every effective or have such critical flaws as to seriously hinder your ability to even grow. E&B seems simple and easy, but there is some very powerful magic that happens in those grow rocks as the heat evaporates that water. E&B also tolerates higher temps usually in the mid 80's when other systems will shut down above 75.
dbud1369
07-13-2010, 05:03 PM
Flood frequency and duration in LIGHT:ever 4 hrs, takes 90 sec to fill and stays there for 2 min the drains, takes another 90 sec.
Flood frequency and duration DARK: every 3 hrs.. same as above
Grow medium:
HYdroponic system: Ebb & Flow
Wattage of light: 2 X 1000 Wt 2700K
grow pot size:about 2.5 gal i think
reservoir size in gallons: 55 gal
number of plants: right now only 9 in hydro in flowering.This system has been said to allow up to 48 BUT yet to try.
Veg and flower time: too long in veg, shooting for 9 weeks might take some sooner, can't force them.
Strain type.....? Finally got strains.. BellaDonna, BigBud, AK, and one from seed that has done AMAZING.
Extra air-circulation to root zone? 2 fans, one for lights and channeld out, the other for canopy and underneath. Had a airstone in control tank, but was informed that it doesn't difuse the O2 small enough.. any thoughts on this.. ????
This is my first Hydro grow/flower, I've been growing for about 2 years and am now just expeirmenting with Hydro. LOVE IT. My clones are set up as this:
1 5 gal bucket
10 holes in top with 2" net pot, 2" neoprene stopper with slit in it for clone to sit. Inside the bucket there's a pump with a rainbow 360 deg. sprayer and it gets all the exposed area on the lid. After just days I've got a 2cm root , I'll have to post pics, this thing is crazy.
ONe LOVe !
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