Formulated with fumic acid, it healthily develops indoor breeding medaka and aquatic plants. It contains natural fumic acid from animals and plants. Promotes the growth of water plant nutrients, absorption and filtration bacteria, supporting the growth of medala. Natural blackwood soil supports the launch of breeding water. Stable for a long period of time with neutral to weak acidic water quality suitable for medals. Black type that highlights the medala.You can see the beautiful medala. Small 0.04 - 0.11 inch (1 - 3 mm) size makes it easy to plant the aquatic grass you need for eggs.