What kind of def. is this? or maybe nute burn?

[Rayman522]

Hopefully u guys can help. im using hydro drip system. i water 3 times for 15 minutes in a 24 hr period. temp is always around 74 degrees. humidity is around 40-60%

i took some pictures please help

one picture i took cause the leaves looked pointy sort of what is this from?

 

[UserFriendly]

Looks burnt or magnesium deficient. I would change out the res to a lower EC.

 

[Rayman522]

Looks burnt or magnesium deficient. I would change out the res to a lower EC.

its only 192 ppm should i still change it out?

 

[UserFriendly]

Well then I'd have to say it's a deficiency. Damn man, my tapwater is harder than that. Does your TDS meter have an EC (microsiemens) scale to it? Get it to around .7 EC (700 microsiemens) and change out the res every 2 weeks.

 

[Rayman522]

Well then I'd have to say it's a deficiency. Damn man, my tapwater is harder than that. Does your TDS meter have an EC (microsiemens) scale to it? Get it to around .7 EC (700 microsiemens) and change out the res every 2 weeks.

lol ok thanks whats that curlin about in that 3rd pic? u kno?

 

[UserFriendly]

lol ok thanks whats that curlin about in that 3rd pic? u kno?

It's easy to over-water a plant when TDS is so low.

 

[UserFriendly]

I gotta say though, I have no idea how those plants got so big on 192 ppm. If you wanna run weak concentrations you just ned to change out the res often enough. I'm flooding in hydroton @ .8 EC, but I change the res every week.

 

[Rayman522]

I gotta say though, I have no idea how those plants got so big on 192 ppm. If you wanna run weak concentrations you just ned to change out the res often enough. I'm flooding in hydroton @ .8 EC, but I change the res every week.

thats what im doing

 

[sir smokesalot]

lol ok thanks whats that curlin about in that 3rd pic? u kno?

userfriendly is right about the third pic, if your overwatering, the plant will "sweat" out excess water and cause the leaves to curl up on the edges like that