Didnt know this - Growing peppers. Peppers hate nitrogen/commercial fertilizer. Wait until plants flower before fertilizing. Then spray leaves with 1 tsp of Epsom salt to 1qt of water (peppers need Magnesium to set fruit). Peppers also enjoy small amounts of potassium (wood ashes).
If only I could do this ;O) the thing: by pruning back the new blossoms in year one, you will have a great crop in years to follow! After the first year, prune at the end of the growing season, removing low growth and any twiggy, non-vigorous branches.