The reason I bought this was because I could see what appeared to be an oil stain on the surface of the water. This tank was set up about a month ago (the canister filter had been running in my other tank for a month so it was a loop) and I saw a few fish rush to the surface for air. I had to either add airstone, which would distort my natural look, or use a skimmer. I decided to give it a try and for the most part it seems to work fine with a little more. You can probably see in my second picture that I added an o-ring to the plastic top inlet. I probably spent 2 hours playing around with air removal, air addition and waiting. I did my best, the thing didn't slip on the surface, didn't bounce up and down. I was able to get it where I wanted and after a few minutes it started spinning, causing the water to suck in faster, sink too deep and start rocking again. The o-ring ended up where it should have been so I'll probably give it a few more weeks and see.
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
KEDSUM 330GPH Ultra Quiet Submersible Pump With High Lift And Grounded Power Cord - Ideal For Fish Tanks, Ponds, Aquariums, Statuary, Hydroponics - Includes 3 Nozzles And 1500L/H Water Flow
39 Review
Aquael Fan Filter Mikro Plus
35 Review
KEDSUM Quiet Rechargeable Battery-Operated Aquarium Air Pump With Dual Outlets - Perfect For Fish Tank, Outdoor Fishing, Transport, And Emergencies
28 Review
π U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
22 Review
Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review
Jasonwell Magnetic Aquarium Fish Tank Glass Algae Cleaner - Floating Brush (L Size)
37 Review
Efficient 2-In-1 Magnetic Fish Tank Cleaner With Non-Slip Design And Scratch-Free Blades
37 Review