Ammonia, you can make the ammonia level whatever you want it to be. I can't think of any advantage of using shrimp. It certainly works but no real upside.
I have a bottle of Dr. Tim's ammonia (not the bacteria product) I've cycled 4 tanks with it and have most of the bottle left.
I have a bottle of Dr. Tim's ammonia (not the bacteria product) I've cycled 4 tanks with it and have most of the bottle left.


