I've wanted these since I was a kid. It works great, but you definitely need an air regulator or "control valve". Without it, even the smallest pump releases too much air and the chest remains open. I bought a "Fluval A1175 Air Plastic Control Valve" and it works great.
π³ Hygger Betta Log: Resin Hollow Tree Trunk Ornament for Betta Fish Tank Decor, Wood House Aquarium Accessories
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
πͺ¨ 5-Pound Bag of Spectrastone Special Blue Gravel for Freshwater Aquariums
10 Review
π§² Efficient Magnetic Fish Tank Cleaner: KEDSUM Floating Clean Brush with Handle Design
34 Review
Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review
Efficient 2-In-1 Magnetic Fish Tank Cleaner With Non-Slip Design And Scratch-Free Blades
37 Review
Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review