Why are the up to date leaves at the top of my habanero plant pale? Am I fertilizing them wrong? The plants are about 1 foot high-ceilinged and they are really...

The plants are about 1 foot high-ceilinged and they are really slow to grow. Some of the leaves are curling up and the top ones are slightly yellow. I believe that this is from a need of a certain nutrient but I hold no idea which one. Any assistance would be greatly appreciated. Thank You.
To whom who have a awareness roughly speaking...
Answers:    It may depend on what part of the country you live surrounded by. If they're not getting the proper warmth and hurricane lantern, they won't budge. What are you fertilizing them with? If you use compost, that's great... the more nutrients within the soil, the better. If you overwater, they'll be bitter, so be careful of that, too!

here are some links that might assist.

http://mgonline.com/yellow_leaves.html
http://en.wikipedia.org/wiki/Habanero
http://en.allexperts.com/q/Growing-Veget...

hope this helps! Good luck growing!
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