Tetra Fountain Block
$10.95
6 pack.
CONTROLS ALGAE Helps prevent algae growth in ornamental water fountains and ponds
SLOW RELEASE Blocks fully dissolve slowly after about 10 days
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
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