Methylene Blue – Aqion Bulk Powder 1 kg for Aquarium & Pond Fish

Methylene Blue Trihydrate (Basic Blue 9) — 1 kg is a bulk laboratory- and aquarium-grade chemical compound supplied by Aqion LLC for professional aquatic facility, research, and ornamental fish system maintenance.

Intended Use Statement

Intended exclusively for ornamental fish egg incubation baths, live-fish transport water conditioning, and dedicated hospital/quarantine tank baths (avoid use in established display tanks as methylene blue stains silicone/decor and inhibits nitrifying bio-filter bacteria). For ornamental fish only. Not for food fish or human use.

Chemical & Product Specifications

• Chemical Name: Methylene Blue Trihydrate (Basic Blue 9)
• CAS Registry Number: 7220-79-3 (anhydrous CAS 61-73-4)
• Molecular Formula / Weight: C16H18ClN3S · 3H2O (373.90 g/mol)
• Physical Form & Appearance: Dark green to bronze crystalline powder yielding an intense blue solution in water
• Solubility: Soluble in water (~40 g/L at 20°C); prepare stock solution in dechlorinated water prior to dosing
• Net Weight: 1 kg (1,000 grams)
• Aqion SKU: MB-1KG

Handling, Personal Protective Equipment (PPE) & Storage Guidance

• Personal Protection: Wear nitrile gloves, eye protection, and a dust mask when weighing powder; avoid dust inhalation or skin/eye contact and wash hands after handling.
• Environmental & System Precautions: Remove activated carbon filtration before water application and maintain vigorous aeration throughout use.
• Storage: Keep container tightly closed in a cool, dry, well-ventilated area (below 25°C / 77°F) away from direct sunlight, moisture, and incompatible oxidizing materials.

Important Disclaimers

• Ornamental Fish Only: For ornamental fish only. Not for food fish or human use.
• Keep Out of Reach of Children: Store locked up and away from children, domestic pets, and food preparation areas. Follow all printed package label directions.