Lora, "tons of small peppers, light green-almost yellow in color, growing straight up" I'll also bet the plant is smallish & bushy/not tall & tree like. If the fruit are thin & tapers to a point, sounds like a Thai, one of its relatives or an ornamental. Serranos grow on taller plants, spaced around the plant, point downward & are bullet shaped. Congrats on your green thumb, Paul