Collection: Liquid Carbon for Aquariums | Easy CO2 Alternative

Provide essential carbon to your aquarium plants with liquid carbon, the convenient alternative to pressurised CO₂ systems for low-tech planted tanks. Carbon is one of the most critical elements for aquatic plant health — plants are 90% carbon — yet it's completely absent in aquarium water, causing the sudden environmental shock that leads to plant failure. Liquid carbon fulfills this vital need, helping plants transition from emersed nursery growth to submerged aquarium life while promoting faster, stronger growth. This dual-purpose solution also functions as an effective algaecide, making it invaluable for controlling algae problems when dosed daily. Perfect for beginners, nano tanks, and low-tech setups where pressurised CO₂ isn't practical, liquid carbon delivers measurable improvements in plant vitality, colour, and growth rates. While some carbon is always better than none, liquid carbon provides an accessible, affordable entry point for supporting healthy planted aquariums without complex equipment or refills.