I second this, my peppers prefer Low nitrogen. I use Foxfarm with Tap Water. My tap water is about 280ppm, and at FULL SIZE my peppers like around 900-1000ppm and 5.9 to 6.4PH. I usually feed my small peppers around 500ppm of week bloom solution with tap water included, if they can handle more after a week, increase the strength of the solution by 50-100ppm.. This means that I use about 220ppm of nutrient solution on my small peppers.I feed my peppers a weak bloom formula. Peppers don't need much N.