Polyp Lab Medic

[skysunlimited]

Can Polyp Lab Medic be used before adding new fish to help with preventing it.

 

[Jay Hemdal]

It is apparently a peroxide salt. It will oxidize organics and breakdown over time, so I would say it is better to use it with fish in the tank, and not as a pre-treatment.
Jay

 

[skysunlimited]

Thank You!