eSHa Oodinex – Wide Range Marine Treatment. eSHa Oodinex is a wide range disease treatment for marine fish in aquariums that contain inverts. Oodinex’s wide range action treats many symptoms and disease organisms. – Safe to use in Marine aquariums containing invertebrates. – Effectively treats many disease organisms. – Eliminates the danger of choosing the wrong treatment. – Treats 800 litres (175 gallons) of saltwater.