Tetra HT Submersible Heater is designed to keep your aquatic fish comfortable with an electronic thermostat that automatically maintains a consistent water temperature of 78 degrees and prevents overheating extending heater life. An indicator light... more
TetraTetra 16737 Fountain Block Algae Control 0.3 Oz Size: 0.3 Oz; Helps control algae growth in ornamental fish ponds; Not recommended for use with live plants; Use one block for water volumes between 100 and 250 gallons; more
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