After a month and half of taking good care of this plant here come the problem. as you can see the brown spot is all over the leaves...starting from picture 1 brown spot start showing mainly from inside out picture 2 starting showing some yellow spot within the brown spot then picture 3 the leaves starting to die out. the picture 4&5 is taken from the tree...this symtom is spreading all over the tree and its killing my tree..one of the plant is turning all yellowish...I need help urgently to rescue my plant..

this plant is under 1000w HPS light day time temp is about 88-93 degree at night the temp drop in between 81-86 degree...PH water i use is 6.6 ... I use combo 24hr nutrient monitor ..the exact same one Divestone has. weired thing is when I tested the PH water using this device if I use just the Ph electrode from the device I get a lower number..if I drop the TDS meter in the same container along with the Ph tester the ph water will change (rised)...

Anywase, I did the trouble shoot on ph runoff water following stinky instruction....I would get 5.1 when in fact the ph water in my res. is 6.6 ...could this be the problem? Please HELP!!!!
shiloh Reviewed by shiloh on . I need help urgently..my plant is dieing After a month and half of taking good care of this plant here come the problem. as you can see the brown spot is all over the leaves...starting from picture 1 brown spot start showing mainly from inside out picture 2 starting showing some yellow spot within the brown spot then picture 3 the leaves starting to die out. the picture 4&5 is taken from the tree...this symtom is spreading all over the tree and its killing my tree..one of the plant is turning all yellowish...I need help urgently to Rating: 5