10+ Amazon Frogbit - Natural Nitrate Reducers and Algae Controller - Great for Ponds- Limnobium Laevigatum 10 + clumps; extras are shipped to ensure live arrivals Consumes nitrate in the aquarium in which reduce/ prevent algae from growing Grown indoor in controlled environment, clean and no insect eggs Excellent pond floaters and for betta bowls Provide great hiding space for fries