Tetra Anti-Algae Blocks – 4 Blocks – 16735
Item – Tetra Anti-Algae Blocks
Model Number – 16735
Quantity – 4 Blocks
Treats – 1 block treats up to 250 gallon
Pond Block helps clear cloudy water and remove algae from ornamental ponds or fountain water.
Pond Block is limited for use in backyard/homeowner ponds and water fountains. For containerized ponds only. Not recommended for use with live plants. EPA registered.