TLC Products StartSmart Complete Freshwater Aquarium Cycle Starter & Beneficial Nitrifiers, Supports Clear Water & Biofiltration, Reduces Excess Sludge, One Gallon (128 oz, 3.78 L)

StartSmart Complete Freshwater is a beneficial aquarium cycle starter that makes fishkeeping easier. This concentrated formula rapidly establishes nitrification and cycling to help prevent ammonia and nitrite spikes in new or established fish tanks, while supporting clear water without harsh additives. It aids in the natural breakdown of organic waste for less sludge and odors, enhancing biofiltration and helping stabilize water quality for community and planted aquariums. Dosing: 1 oz per 10 gallons for new-tank cycling, 1 oz per 20 gallons for water-clarity support, and 1 oz per 40 gallons for routine maintenance. For new tanks, add after dechlorination; cycling typically completes within 24–72 hours. For clarity challenges, dose weekly until desired results are achieved. Available in multiple sizes. Not for human consumption. Store at room temperature and follow label directions.

• Cycle Starter. Rapidly establishes nitrification to help prevent ammonia and nitrite spikes in new or established freshwater aquariums/fish tanks.
• Supports Clear Water & Biofiltration. Breaks down excess organics, supporting clearer water with less sludge and cloudiness and enhances biofilter performance.
• New-Tank Cycling Guidance. Use after dechlorination; cycling typically completes within 24–72 hours, ideal for community and planted setups.
• Simple Dosing. 1 oz/10 gal for cycling, 1 oz/20 gal for clarity support, 1 oz/40 gal for routine maintenance; easy liquid dosing across multiple tank sizes.
• Aquarium-Safe Use. Suitable for fish, shrimp, snails, and plants when used as directed. Not for human consumption.