Denitrifying Bacteria Tablets for Clean Water, Healthy Fish & Algae-Free Aquariums 

Bad water kills silently. High nitrates, unstable biofiltration, and invisible bacterial imbalances can slowly destroy the beauty of your aquarium. But now, one small tab can fix it all. 

Sunken Garden Bacter Tab is a powerful, all-natural denitrifying bacteria tablet designed to stabilize the nitrogen cycle, break down excess nitrates, and prevent harmful algae, especially Blue Green Algae (BGA). With 6 active tabs + 1 free, it’s the smart and safe solution trusted by Indian aquarists for long-term water health. 

Ideal for freshwater, planted, shrimp, and even paludarium setups, this versatile bacterial booster recharges your aquarium’s invisible life force, the microbiome. 

✅ KEY FEATURES & BENEFITS 

🧪 Stabilized Nitrate Reduction

Packed with powerful denitrifying bacteria that break down nitrates, restoring clean, healthy water conditions.

🔁 Biofiltration Support

Enhances beneficial bacteria colonies in filters, substrates, and surfaces, promoting a strong and stable nitrogen cycle. 

🟢 Blue-Green Algae (BGA) Control

Reduces the risk of cyanobacteria blooms and unsightly slimy growth, without harming fish or plants.