So I have 150 gallons it was a lot easier to slip in there and it cleaned but it also shook and came loose a few times but the seal it stayed on the glass. Now for 40 gallons you have to be huge to operate them, or at least use two hands. Erased everything inside without shaking or chipping. 20 gallons have to use elbow grease again, but it came up and did the job. work and not be too big for the tank. Overall since I got this for my large tank it has done the job but didn't stay attached and I have pliers in this tank so sticking my hand in the tank is a bold move.
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
🐠 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
🪨 5-Pound Bag of Spectrastone Special Blue Gravel for Freshwater Aquariums
10 Review
🌳 Hygger Betta Log: Resin Hollow Tree Trunk Ornament for Betta Fish Tank Decor, Wood House Aquarium Accessories
9 Review
🐠 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 – Natural Polished Decorative Gravel for Garden Landscaping and Ornamental Rocks in Mixed Colors
12 Review