brown spots on leaves HELP

[new at this]

:(

i have notice wee brown spots appering on the tips of my leaves.does anyone know what could be the problem???????????

[new at this]

oh and when can i tell the sex of the plant.????

[OR Freebird]

Not sure about the brown tips, but you won't be able to sex your plants until you change your light cycle to 12/12. Once the cycle is changed, the plants will usually show their sex anywhere from 3-14 days.

If you don't want to put the whole plant into fruiting, you can just cover one branch with some heavy opaque cloth or paper for 6 of the 18 hour light cycle so that branch thinks it is on a 12/12 cycle -- you just have to remember to be consistent and make sure you are there for the covering/uncovering.

[cnd411]

:(

i have notice wee brown spots appering on the tips of my leaves.does anyone know what could be the problem???????????

What medium are you growing? Do you have problem with pH ?

[new at this]

i am using tomatoe grow bag soil.lights are on 12/12 for the past week.

ph is 6.8.

[cnd411]

Pictures suggest that you are slightly underfeeding. Also look like under watering as well. Give your plants a complete nutrients solution and water until run off at the bottom of your pots. pH 6.5 is better for your growing medium. Have a good day.

[new at this]

i havent used any feed yet.what is best to use??

[mscaboo]

try cloning for sex,earth juice nutes are good

[new at this]

Hi just some updated pics.How do they look now??? :dance: