I'm cycling a tank and about 4-5 days into the cycle, I dosed the ammonia way too high by accident and killed the cycle. I did a massive water change and the ammonia is back down, but I am wondering if I should add more of Dr. Tim's One and Only before I add more ammonia. I initially used the One and Only, but I'm not sure if I killed it all off. Since the ammonia spike, the ammonia is dropping, but not as quickly as it normally does. Any suggestions would be greatly appreciated. Thanks!