Seachem

Seachem Focus Fish & ; Aquatic Life Medication For more than 30 years aquarium hobbyists have turned to Seachem Laboratories for products designed by chemists and biologists. Treat internal infections with Seachem Focus. This medication is an antibacterial polymer that treats fungal and bacterial infections. Seachem Focus can be administered alone or mixed with other medications. It can be used in freshwater or marine aquaria.