Ebb and flow problem...why are my plants turning yellow? (merged)

Please forgive if i spoke too soon like i said i'm still tryin to work the board.I seen and ran with it but i'll get the hang of it soon.I hope at least.No harm no foul, but now that i seen the pics i agree
that they look good/ just that yellow.:thumbsup:

But yeah.... just wanted to update this in case anyone else has to go through this...it turns out the more developed plants were not nearly as severely affected as the under developed plants ...i would say that the difference in height was about 2 inches ...the 6 inch plants began to yellow but i believe because they had much more green foliage that did not get a chance to turn yellow, that they were able to still fuel new growth and allow the plant to recover. where as the smaller plants turned almost completely yellow and have really struggled to recover...but im confident that i will be able to get them back on track it does seem that i have lost a good 3 weeks worth of growth just comparing to my other successful grows. i see very healthy new growth on 12 of my 18 plants and they seem as if they will do just fine...but 4-6 of the smaller plants that i had introduced to the poison hut are just starting to show signs that they will also pull through....i have also started 12 seedlings in that hut as a "from scratch " test to make sure this new hut is not off gassing like the one i traded it in for. :smokin:

I have a poison hut as well. :(
How did it go for you in the end?

I took back my hydrohut deluxe and the guy exchanged it for a new one...got every thing set back up and low and behold ....the second hut was poison too....didn't realize it until it was too late so there goes another crop down the drain ...took it back got a store credit and built 2 sealed rooms 1 for veg ...1 for flower....its all good now..!! :smokin:

Ye heard same story as yours over and over again.
Been collecting material all over the web the last 3 days and havent found a single grow from seed to harvest with these tents. Have about 100 threads found now about problem ones though. Some people have managed to go through 12/12 phase but with poor yield and even they are ery few.
One guy even made clones to try it out properly and put half in the hut and half in another tent with same nutes and same lights etc and got less than half the yield from the Hydro Hut ones.
Some plants seem to be able to take the tents better than others though. On ordinary growforums you find much less problems but on CB forums as I said after 20-30 hours of research I am yet to find a seed to harvest grow that went ok.
I changed my tent for a Secret Jardin Dark room and my dieing plants recovered in 30 hours.

Chinese poisonous crap canvases. :(

Puffzter