Sunken Garden Liquid CO2 Boost – Organic Carbon Source for Aquatic Plants | Algae-Free Growth | Shrimp Safe 

A powerful liquid CO₂ alternative that promotes lush, algae-free plant growth while being 100% shrimp and snail safe. 

Sunken Garden Liquid CO2 Boost is a premium, plant-safe liquid carbon supplement formulated to supercharge photosynthesis and promote vibrant, healthy aquatic plant growth. Enriched with organic carbon compounds, it improves nutrient absorption, enhances color, and increases iron availability—without adding nitrates or phosphates. Ideal for aquascapers who want lush greenery without expensive gas setups. 

KEY FEATURES & BENEFITS 

INGREDIENT INSIGHTS 

WHAT’S IN THE BOX 

USAGE INSTRUCTIONS 

SUITABILITY 

Perfect for: Anubias Nana, Anubias Nana Petite, Anubias Barteri, Anubias Barteri Broad Leaf, Anubias Coffeefolia, Anubias Congensis, Anubias Golden, Anubias Gracilis, Anubias Frazeri, Anubias Afzelii, Anubias Hastifolia, Anubias Heterophylla, Anubias Gilletii, Anubias Pynaertii, Anubias Gigantea, Anubias Glabra, Anubias Caladiifolia, Anubias Coin Leaf, Anubias Mini Coin, Anubias Kirin, Anubias Pinto.

Perfect for: Java Fern, Windelov Fern, Narrow Leaf Java Fern, Trident Java Fern, Needle Leaf Fern, African Water Fern (Bolbitis), Bolbitis Heudelotii.

Perfect for: Java Moss, Christmas Moss, Flame Moss, Weeping Moss, Willow Moss, Peacock Moss, Taiwan Moss, Phoenix Moss, Mini Pellia (Liverwort), Riccia Fluitans (Floating Crystalwort), Marimo Moss Ball.

Perfect for: Jungle Val, Italian Val, Corkscrew Val, Contortion Val, Tiger Val, Spiralis, Dwarf Vallisneria, Vallisneria Americana, Vallisneria Nana.

Perfect for: Crypt Wendtii, Crypt Wendtii Green, Crypt Wendtii Red, Crypt Undulata, Crypt Balansae, Crypt Lucens, Crypt Spiralis, Crypt Albida, Crypt Tropica, Crypt Retrospiralis, Crypt Flamingo, Crypt Beckettii, Crypt Cordata, Crypt Willisii, Crypt Walkeri, Crypt Usteriana, Crypt Thwaitesii.

Perfect for: Amazon Sword, Radican Sword, Ozelot Sword, Ruffle Sword, Red Rubin Sword, Melon Sword, Chain Sword, Pygmy Chain Sword, Parviflorus Sword, Marble Queen Sword, Echinodorus Bleheri, Echinodorus Cordifolius, Echinodorus Horemanii, Echinodorus Latifolius, Echinodorus Tenellus.

Perfect for: Alternanthera Reineckii, AR Mini, Alternanthera Rosaefolia, Purple Temple, Scarlet Temple, Alternanthera Rosanervig, Alternanthera Cardinalis.

Perfect for: Rotala Rotundifolia, Rotala Rotundifolia 'Green', Rotala Colorata, Rotala H'ra, Rotala Macrandra, Rotala Wallichii, Rotala Indica, Rotala Sp. 'Ceylon', Rotala Mexicana, Rotala Nanjenshan.

Perfect for: Ludwigia Repens, Ludwigia Arcuata, Ludwigia Glandulosa, Ludwigia Palustris, Ludwigia Super Red, Ludwigia Ovalis, Ludwigia Inclinata, Ludwigia Peruensis, Ludwigia Sedioides, Ludwigia Natans, Ludwigia Mullertii.

Best For: 

FAQs 

Q1: Can this replace pressurized CO₂? 
✅ For most hobby tanks, yes. While not as powerful as pressurized CO₂, it greatly improves plant growth in low-to-mid light setups. 

Q2: Is it safe for shrimp, snails, and bettas? 
🦐 Absolutely. It's invertebrate-safe when used as directed. 

Q3: Will it cause algae? 
🚫 No. In fact, it helps prevent algae outbreaks by supporting plant growth without excess nutrients. 

Say goodbye to algae and hello to lush growth. Choose Sunken Garden Liquid CO2 Boost, the smart, shrimp-safe way to grow thriving aquarium plants without expensive gear.