Tetra Pond Fountain Block Algae Controller

Tetra Pond Fountain Blocks control the growth of unsightly algae in your ornamental fountain. Simply drop a block into your fountain and watch the algae disappear!Helps control algae growth in ornamental water fountains.Clears cloudy water.Each block treats between 30 and 80 gallons.Initial dose may require 1 block for every 30 gallons of water. For regular algae control maintenance, replace the block when it becomes fully dissolved (usually after 10 days).Important: For containerized ponds and fountains only. Use in compliance with all instructions. NOT FOR USE WITH LIVE FISH OR PLANTS.Active Ingredients:
Copper Sulfate Pentahydrate - 1.02%
Diuron [3-(3,4-dichlorophenyl)-1, 1-dimethylurea] - 0.51%
Other Ingredients: 98.47%
Total: 100.00%