Microbe-Lift Birdbath Clear, 4 oz Friday the 13th This window stop meets ASTM

This window stop meets ASTM standards

It is recommended that cartridges be changed every 4 to 6 weeks

Made without grains and highly digestible

Insect larvae and salmon recipe fish food

Microbe-Lift Birdbath Clear, 4 oz Friday the 13th This window stop meets ASTMKeeps Birdbaths Water Clean & Clear Specially Formulated for Birdbaths Inhabited by Birds, Small Fish, Frogs, etc. Prevents organic and inorganic contaminants from forming (i. e. crusty white scale deposits, iron, copper and hard water stains). Uses two unique proprietary technologies: One system helps to prevent the buildup of stains and mineral deposits on the birdbath or fountain surface. The second system uses bio enzymatic activity to keep water