sorry I cna't help you, but the little experience I had it was very difficult to grow chillies from seeds, but very easy from a small plant. I am not a great gardner, so you might have better luck.
Puerto Rico is a hot, humid tropical climate. Much like that of Southern India. Last time I grew chiles from seeds, I was innundated and ended up with huge Ziplock bags stuffed full of cayennes, Thai Dragon chiles and red and green habaneros. Chiles in this climate will grow like weeds.