Precision CO₂ Counting Made Easy Struggling to count CO₂ bubbles accurately? Tired of constantly refilling your bubble counter as water evaporates? Neutro Bubble Counter Fluid solves both problems. Key Benefits Non-evaporating formula – fill once and forget Increased viscosity – slow, clear bubbles for precise counting 100% aquarium-safe – non-toxic to fish, shrimp, and plants Long-lasting – one 100ml bottle lasts months Professional results – achieve stable, accurate CO₂ dosing How It Works The specialised viscous formula creates slow-moving, easy-to-count bubbles in your external bubble counter. Unlike water, it won't evaporate, so you maintain consistent CO₂ monitoring without constant maintenance. For external bubble counters only. Safe for all aquarium inhabitants when used as directed.