More information could help. What kind of chili is it? What direction does your window face? How often do you water? Have fertilized much?

I can't tell from the picture but it looks like you have 3-4 plants in one pot. If that's the case then your plants probably battled it out to the death. Pepper plants need they're own space and room to consume nutrients and grow. If they grow together they will steal from one another and then become weak in time

This is the pot, its the one plant it just stems out different directions from the centre.
The window faces West. I water once to twice a week. A few weeks ago I changed my plant food (that could be it).

Here is another Picture, not sure what type of chilli plant it is

these are the type of chillis that it has been growing

Don't know why. But that container is way too shallow. I'd be hard pressed to even try lettuce in it. Also sounds like overwatering for an indoor plant.

Kevin

This post was edited by woohooman on Wed, Mar 19, 14 at 13:30

Yep. My reaction too.

Please detail with what and how you are fertilizing.

Dennis

My suggestion is total repotting in a new container. New soil, and stay away from the ferts for a while. Also, ensure you are not over watering. Container should be about as high as it is wide at the top..
Bruce

I agree with these guys. The mix looks too wet.
Re-pot, give it light, fertilizer in a week or two, and hope it recovers.

Josh

I think I will repot. Also a friend mentioned introducing worms into the soil. One or two (even though they would probably reproduce). Thoughts?

No worms in the soil. Save that for outdoors. Worms will actually compromise the integrity of soil in a container, whereas they aerate soils in-ground.

Secondly, I'd elevate that pot out of the drip-tray - you want the mix drying out in a timely fashion.

Josh

Yah, just repot the poor thing. Don't try to get too fancy. Keep it simple while the guy is ailing. I agree also about the drip tray. If there is standing water in there, it is going to wick right back up into the soil and it will take forever to dry out. If you need to used a drip tray, make sure there is no standing water in it after you get done watering...maybe check it an hour after watering to make sure none drained in later. Or, as Josh says, elevate it some from the drip tray.
Bruce

Let me drop another bomb:
TOO MUCH water.
I water my 4" seedling once a week AND they don't have a saucer to drink water back from it. With that size of pot watering TWICE a week (even once a week) sound too much water , to me.

Another thing: Is that an overwintered plant ? If so, often they shed their leaves when they cannot get enough light and/or temperatures are cooler.

As mentioned, although the pot has enough volume but is is shallow in depth.