TetraPond® Pond Block®, 4 Count and 50 Count Containers Size:Four Pack This gel-based solution sticks to

This gel-based solution sticks to the filter media

depending on availability

SKU UPC Code Model Pond Capacity Flow

Works most effectively with the use of an aeration device (e

Will not remove essential iodine (iodide and/or iodate ions) from saltwater

TetraPond® Pond Block®, 4 Count and 50 Count Containers Size:Four Pack This gel-based solution sticks toTetraPond Pond Block Algae Control helps clear cloudy water and remove algae from ornamental ponds and 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.