after a long, grueling, 39 days; my cycle for my 5 gallon shrimp tank is complete. I tested my water this morning and my nitrites, nitrates, and my ammonia are all at 0ppm. Now what? Should I dose ammonia again and keep an eye on it for a few days to make sure everything is able to cycle okay then do a 100% water change? Or do you think I'm good to add my shrimp?