WIO Nautilus Dark River Kit - Create Exotic Aquascapes Inspired by Nature nano tank CO2 A 300 ml bottle lasts

A 300 ml bottle lasts roughly 3 months in a 115 L (30 gal) aquarium

or fish-only tanks who want a mode tailored to their setup

The Chihiros Doctor 5 is a smart water steriliser that uses controlled micro-electrolysis to suppress algae and reduce microbial load

so they dissolve into the water column before drifting up and off-gassing at the surface — which means more of the CO₂ you're paying for actually reaches your plants instead of escaping into the room

as the manufacturer does not recommend the device for higher-mineral-content water

WIO Nautilus Dark River Kit - Create Exotic Aquascapes Inspired by Nature nano tank CO2 A 300 ml bottle lastsCraft a breathtaking aquatic biotope in your aquarium with the WIO Nautilus Dark River Kit. Inspired by the unique ecosystems of Lake Turkana and the Pantanal wetlands, this all in one kit includes dark sands, gravels, and Black Venom Stones, offering everything you need to create a vibrant, natural environment for your aquatic plants and fish.