Flood and dRain Dimensions

if i have a 2 ft X 4ft fllood reay.. how many plants will this be able to support for flowering?

Flood TRAY****

i would say 3 comfortably or maybe 4. you could probably squeeze a few more in there with less desirable results, depending on lighting ofcourse. what kind of light are you gonna run?

-shake

Shake- you grow in hydroponics yet before you give that advice?

2x4 tray on a 25 gal reservoir will comfortably flower 30 plants in 6" pots of hydroton. I currently flower, in my 2x4 tray, a combination of plants in 6" pots for commercial strains and 3" pots for boutiquey strains that don't grow large as single cola plants with no veg time from clone. At the moment I think I'm running about 40 plants per tray mixed in pot size like that, or 30 if I am running either the Afghani Dream or MSS that get real big, real fast.

It would hold 32 x 6" except that the fill/drain fitting prevents the last 2 pots fitting in there.

Running large plants in a flood and drain is not a viable option. A tray of that size with 3-4 plants, used with canopy efficiency in mind, would require either a bed layout or like 3 gallon pots, and honestly, you end up with a LOT more risk of root rot, like, exponentially a lot more, once you get a big root ball in that type of system.

Edit: I don't have time to post pics before I have to go to my second job but go look in the grow logs, the user 'foxysox' has a thread in there running that style...

awesome stinky. i guess i should browse a little while longer before trying to answer questions. i try to read every thing you post. i'm trying to gobble it all up. thanks for all the good info.

-shake

edit: stinky, what kinda lighting are you running on that?

It's not about browsing. Gotta go out and DO it, repeatedly and successfully, before you give advice on it. Reading alone is just the beginning.

Here's some assorted SOG pics...
A large ebb n flow tray (yes I know it is missing a reservoir lol) full of newly-rooted clones potted up in 3" pots of HT. They will be evaluated a week later and the top performers will be picked out to replace the mothers that had to be thrown in the rubbish at this site. The poor performers will be culled. The rest will be moved to flower, where they will be transplanted to 6" pots as soon as they finish stretching.
[attachment=o209399]
Here's the size pots I'm talking about.
[attachment=o209400]

The next two pics show the same concept on a home-grow scale:[attachment=o209401]
[attachment=o209402]

i was jus gonna use a 400w hps

so what size pots would filll up the tray tightley ang for 30 plants a 400w wood be insufiecient....no?

stinky said she was using 5" pots for most of the plants and 3" for a few of the fast growing strains and could acheive 30-40. the 400w hps should cover the tray fine and would work pretty well i assume. you probably won't get much penetration once to plants get taller, but if you are going for a SOG i would assume it would work.

how about that light stinky? and can you put mulitple strains in the same tray?

-shake