my plant is having some issues.

First off this is my first grow. I germinated a bag seed and planted it in a sixteen oz party cup. it grew its first true leaves in about a week and a half then i transplanted it into a 5 gal bucket. Im using a 42 watt cfl bulb as of late which was about 2-4 inches away from the top of the plant. i feel that may be my problem because the pant appears to be burnt. But this is a current picture and it was just doing so good in my opinion then it just got fucked up on me. So can anyone tell me what these curling/yellow tipped leaves indicate?

whats the stem like?

What kind of soil are you using and what kind of nutes are you feeding and how much are you feeding?

Jack Harer said:

What kind of soil are you using and what kind of nutes are you feeding and how much are you feeding?

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Agree^^^ Soil and nutes play a huge part, also watering habbits(how much u water? every other day or longer?). And ofcourse the biggest question out of them all have you Ph Tested the watever u feeding them?

pH in soil isn't that critical, not as much as over or under feeding, and that looks a lot like they're nute burnt. Are you using a potting soil with slow release nutes, and feeding them on top of that?

Discoloration in the leaves, yellowing or rusty spots and leaf tips curling upwards are all classic nute-lock symptoms. Nutrient lockout basically occurs when optimal nutrient levels are not pH and nutritionally balanced so your plants cannot get access to a specific nutrient or group of nutrients it needs, consequently it develops a deficiency. Cannabis grows best in soil with a pH from 6.5 to 7.0. Within this range marijuana can properly absorb and process available nutrients most efficiently. If the pH is too low (acidic), acid salts chemically bind nutrients, and the roots are unable to absorb them. An alkaline soil with a high pH also causes nutrients to become unavailable. Toxic salt buildup that limits water intake by roots also becomes a problem. The pH of organic soil mixes is very important because it dictates the ability of specific pH-sensitive bacteria. To remedy, flush with 3x water to soil and get a pH meter for your nute solution and test your soil with a soil meter or litmus paper.