ALthough never actually tried this products, but have tried other very similar products. It is not a treament but rather health enhancer..
I learned over many decades of fish keepng that ultimate success rate really depended on the following:
- Providing ultimate Ideal Condition (Not pristine as microbes free tank can not
support life) for fish being kept & appropriate routine
maintenance scheduled for each specific tank's needs.
- Variety of foods given
- Proper quarantine procedures for all new incoming fish
- Smart selection of tankmates, etc, etc.
If you read the info on the label, it will tell you that pathogens are always present in well matured tanks. It is matter of controlling by following above plus other basics.
No different form us. virus and bacteria are all around us. Eat well balanced food, control the intake amount, exercise accordingly, etc, etc will lead to healthier life. So they say!
Even gentically inherited health problems can be controlled to some degree by good health care (I dont mean drugs).
Hope you are dont need to use this product or other similar prophylactic remedy.