Bubbles well. However, they do begin to "shed" with moderate use and cleaning. There was some algae in my hydroponic tank so I also had to clean the air stone. Pieces kept falling off. After cleaning, I noticed that pieces of airstone fall into the tank every day. Considering they cost less than a dollar each, that's not the worst that could happen. However, I would really prefer that they didn't "spill" into my tank.
KEDSUM Quiet Rechargeable Battery-Operated Aquarium Air Pump With Dual Outlets - Perfect For Fish Tank, Outdoor Fishing, Transport, And Emergencies
28 Review
Sink filter Prio New Water Start Osmos OU380 white
79 Review
KEDSUM Battery Aquarium Air Pump: Ultra-Quiet Rechargeable Fish Aerator with Dual Outlets - Ideal for Fish Tanks, Outdoor Fishing, Fish Transportation, and Power Outages
35 Review
Aquael Fan Filter Mikro Plus
35 Review
π Enhance Aquarium Maintenance with hygger Carbon Fiber 6 in 1 Cleaning Tool Kit β Algae Scraper, Scrubber Pad, Sponge, and Telescopic Handle for Optimal Fish Tank Cleaning in Saltwater and Freshwater Environments
5 Review
Penn Plax QN2 Quick Fish
9 Review
FISH PROS Fine Mesh Handle
3 Review
π Enomol Gravel Vacuum - Aquarium Water Changer and Fish Tank Cleaning Tool Kit, Universal Siphon Pump for Quick Aquarium Water Changing
5 Review