Crystal Blue 15 Lb. Copper Sulfate Smart Crystals 6-Acre Coverage Area Moss & Algae Killer Small Animal SAFE-GUARD is safe for puppies

SAFE-GUARD is safe for puppies 6 weeks of age or older and pregnant females as well as adult dogs of all breeds

pregnant mares and older horses

Always Read and Follow Label Directions

Application Rate:

Reduces feed waste by eliminating scratching

Crystal Blue 15 Lb. Copper Sulfate Smart Crystals 6-Acre Coverage Area Moss & Algae Killer Small Animal SAFE-GUARD is safe for puppiesEffectively controls most types of algae. Apply by casting copper crystals over floating algae mats, dissolve in water, and spray, or place crystals in porous bag and drag behind boat. Treat a portion of the pond at a time to prevent oxygen depletion.