Bio-Tet is a broad spectrum antibiotic for treatment of infectious diseases in marine and freshwater aquaria, particularly effective against bacteria sensitive to Tetracycline. Bio-Tet also proves and effective treatment for Red Slime algae (caused by Cyno-bacteria).

Bio-Tet may cause the water to become stained a red colour, this indicates the treatment is working.

Colouration of the water fades after around 1 week.

Can be used in marine reef and fish aquaria as well as planted freshwater aquaria.

Prolonged use may adversely effect beneficial bacteria in biological filters.