Some browning edges on young plants, sign of deficiency?

Hey guys, first indoor grow, plants are about 7 weeks from clone under cfls, trying to veg slow to frew up the flower tent. Noticing some browning on some of the fan leave edges, almost looks like A flame hit the edges.

Growing in coco/perlite, ph'd water to about 5.5, general hydroponics flora grow nutes and cal mag

Thanks for any help, the pics in the stickies dont work, is there an informative thread with pics of deficiency with a paragraph of why its happening?

Kinda resembles potassium deficiency. Potassium uptake is greater as you move up from 5.5. Maybe adjust pH to 5.8-6.2 to start, see if damage ceases.

It also looks like you may have mites. Have you handled that?

I did not even notice those white dots until now

Also, are you not using Flora Micro? That's really important. Some people don't even use Grow, they use Micro and Bloom all the way, called the Lucas method. Micro is super important for healthy plants.

I feel like I've seen similar symptoms on dark parts of the plant too. Could be low light causing senescence. But get that Micro in there if you don't already.

Yes I am using the micro aswell, using all 3 of the flora bloom series and cal mag. Following the growweedeasy.com feeding schedule.

Her schedule only goes to week 3 I believe in veg, I am going to veg for atleast 8 weeks, and believe I am in week 5, should I be exponentionally increasing the dosings past what that website shows for week 3 and beyond?

Ill see if I can post there schedule, just didnt want any overfeeding problems

EDIT: wont let me post a pdf, but the feeding ammounts are small like 1/2 teaspoon of each and a full teaspoon i believe of calmag

http://www.growweedeasy.com/general-hydroponics-nutrients

I upped the ph to about 6 this feed

Have you checked for bugs ?

I see the side browning

but theres pale dots on a lot of your leaf, I`d check for spider mites and such

Looks like a potassium deff but could just be bad lower lighting if its just the lower stuff

still ph adjustment and a little more grow/bloom food should sort it

Hi there
What is the temperature in your room
It may just be a heat issue
Do you vent out heat ?
How close are your lights ?
Good luck
Papalag

temps are mid 80s during lights on, I do vent out the heat from the top of the cabinet, the lights are very close being cfls, usually less than 2 inches

But none of the top upper new growth have it, its on the mid and lower section