TETRA ALGAE CONTROLLING POND BLOCKS
Controls algae. Easy-to-use blocks. For containerized ponds only! Pond block is limited for use in backyard/homeowner ponds and water fountains. (maximum 3,000 U.S. gallons) Do not use fish from treated ponds or fountains for food or feed.(Jungle Product)
16735- 4 PACK
16310 - 50 PACK JAR