Hikari betta revive 08 oz 2 5 mL the world s most effective product available to prevent control betta problems betta revive offers an easy to use dispenser and treats 16 ounces of water with just one drop for times when your betta is suffering from various disease issues look no further than aquarium solutions to help you resolve the issue easy to use and gives your betta their best chance at a rapid recovery prevents controls protozoan bacterial fungal diseases helps regenerate damaged fins tails active ingredient speeds recovery safe effective short term treatment typically 3 to 7 days ingredients water neomycin SULFATE.