Kills adult fleas on contact

essential for a thriving aquatic ecosystem

Mix-In or high-value Treat

Heavy duty sand scooper

Tetra Pond Fountain Block 6 Count, Controls Algae Growth In Ornamental Fountains 16 Oz Cat Products Kills adult fleas on contactAbout this item CONTROLS ALGAE: Helps prevent algae growth in ornamental water fountains and ponds. SLOW RELEASE: Blocks fully dissolve slowly after about 10 days. FOR CONTAINERIZED FOUNTAINS & PONDS: Not recommended for containers with live plants. EASY TO USE: One block treats between 30 and 280 gallons of water. CLEARS ALGAE BLOOMS: Each block dissolves to control algae and clear algae blooms.