Fishless is much easier and eliminates the lose of fish from ammonia and nitrite poisoning. It is also much less work.
From the API website tech sheet: "Stress Zyme is a biological filter additive containing live bacteria that improves the development of the biological filter and helps clean a dirty aquarium. The build-up of organic pollution in the aquarium inhibits the growth of nitrifying bacteria. The bacteria in Stress-Zyme keep conditions in the aquarium right for the development of the biological filter by consuming harmful organic pollutants."
You keep a tank clean with water changes, not a chemical. It also says that it can be used in both freshwater and salt water. There is a totally different set of nitrifying bacteria in SW versus FW so how could it help both tanks when they aren't even the same bacteria.
As you can tell, I am one of those that think bacteria in a bottle products are a waste of money. If they really worked, do you think any of us would ever do a fishless cycle again? Most of us have tried them and know for a fact that they don't work.
Stress Zyme does not claim to contain nitrifying bacteria.Another vote for bacterial cultures. I have great success with Stress-Zyme.
From the API website tech sheet: "Stress Zyme is a biological filter additive containing live bacteria that improves the development of the biological filter and helps clean a dirty aquarium. The build-up of organic pollution in the aquarium inhibits the growth of nitrifying bacteria. The bacteria in Stress-Zyme keep conditions in the aquarium right for the development of the biological filter by consuming harmful organic pollutants."
You keep a tank clean with water changes, not a chemical. It also says that it can be used in both freshwater and salt water. There is a totally different set of nitrifying bacteria in SW versus FW so how could it help both tanks when they aren't even the same bacteria.
As you can tell, I am one of those that think bacteria in a bottle products are a waste of money. If they really worked, do you think any of us would ever do a fishless cycle again? Most of us have tried them and know for a fact that they don't work.