what size tent for a 400w HPS

i'm looking at grow tents and wanting to get one bought and sorted today. i'll be using a 400w hps in it.

i've only got 3 plants to grow - tangerine dream, strawberry blue and a fruit auto

question is do i want an 80 x 80 x 160cm or a 60 x 60 x 140cm ?

i dont want my babies getting cramped and restricted but at the same time i dont want the 400w to get lost in too big a space.

any thoughts?

anyone????

I'm growing in a 20"x36"x60" tent with a 400w hps. I'd say that should be the smallest and max should be no more than 4'x4'

I don't think you should grow more than 2 plants under a 400w. Hell, I think there should only be 1 plant per light then scrog it to get max yield out of each plant.

thank you kind sir !

Get a 4x4 if you don't want them getting cramped. I've got a 400w in a 4x4 and it's just right for 2-3 plants (4 is too crowded)

In my opinion, air circulation is far more important than the fractional ambient light improvement a smaller closet has. There are better ways to increase production without having your plants right up against the walls.

I have a 600 watt in a 4x4 tent. I have 3 large plants in there. My friend has a 400 watt in a 4x4 and it works perfectly for him. 4x4 is what I would recommend.

i agree, im doing 600w in a 4x4 and its the perfect size. but a 3x3 with a 400w would be fine too

between 3x3 and 4x4.

If you ever plan on upgrading, you might as well just get the 4x4 now.

square space high up, for me, is quite restrictive given that upstairs is a converted attic and has 45' slanted ceilings, think i'll go for the 80x80x180cm. the ones up from that are 2m and upstairs aint that high lol

http://stores.ebay.co.uk/Homewith-Bargains/_i.html?_nkw=grow+tent&_sid=170198866

best i could find