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35-40 days into flower and I don't see any flowers. I would say scrap them and start over at this point. Don't waste any more nutes, elcetricity and time on those losers.
swimmer,
These sensi stars are not losers at all. The healthy ones are gorgeous sugar coated babies! The one that got burned stalled, but I can still see flowers in the pics. You sound angry, and while the burned one will die, the other ones are great and will not be scraped. You stink.
this looks like a case of light bleeching and nute burn
your using a 300 watt hps??I never heard of that do you mean 400?
5 inchs from any light source over 150 will cause a weird bleeching affect
move the light up and flush your res you dont know your ppms and its showing some signs of a little overfert
you check your ph often too you should check it daily and when you add nutes you check it a few times to make sure the ph is stable because depending on how depleated the nutes are from the res they will take nuets out and the ph will rise
ppms is very important to know because if you havnt grown the strain before its important to check on ppms so it wont get to high or low
your reflectix your using keeps in heat i used that for my grow too
only because i had some left over from a heating project
if you can get some mylar
mylar traps less heat but will relect more light without the heat
what your using is fine but i would definatly move your light up
even though your light isnt very strong its still giving a bleeching affect
raident heat where the light rays are bleeching the green cholorphyl off the leaves