It didn't work as I expected. CO2 bubbles simply bypassed the bullets and rose. One of the spheres rotated slowly while the rest did not move. Unless you have a "huge" tank and you're pumping out a massive amount of CO2 (more than 10bps), I don't see how this is supposed to work. As other reviewers have noted, the hardware leaks and I even had to superglue the bottom to keep it in place.
Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review
Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review
Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
55 Review
Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review
π AquaticHI 27-Inch Aquarium Tongs - 100% Reef Safe - Multi-Purpose for Fresh & Saltwater Fish Tanks - Clip Plants, Spot Feed Fish & Coral - Keep Hands Dry
9 Review
18lb BLQH Aquarium Gravel River Rock with Pebbles Stones β Natural Polished Decorative Gravel for Garden Landscaping and Ornamental Rocks in Mixed Colors
12 Review
Aquarium set 6.8 l (lighting, cover, filter) Tetra Cascade Globe Duo Waterfall black
19 Review
Faucet for kitchen (sink) Blanco Fontas II (granite) pearl
16 Review