Seachem Kanaplex is a strong antibiotic used to treat severe bacterial infections. Dosage is 1 level scoop (provided)/ 5 gallons every other day for up to three doses. Do not use this product everyday while the betta is sick, as this would be considered overdosing. Do not use this medication more than neccessary or do not skip a dose because it can make the bacteria resistant to the antibiotic.