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
Puffzter Reviewed by Puffzter on . Ebb and flow problem...why are my plants turning yellow? (merged) Can any one answer this...it seems pretty simple but cant seem to get anything in plant problems to match ...i keep having a problem when i switch from one growth stage to the next ...i had ak47 and burmese kush plants in 4x4x4 rock wool cubes which i watered daily by hand with a basic flora nova grow and hygrozyme nutriernt mix the plants flourished ..i did this for almost 7 weeks and was able to sex out the true males...i then took my remaining females and put those into a 4'x4' ebb and flow Rating: 5