AEXZR® 2-Way Magnetic Aquarium Scrapers 5.8+15/17（1），9.6+15/17 （2），19.1+15/17（4），36.9+15/17 （8） and you couldn't even see

and you couldn't even see my prize koi properly

6 hours apart each time

But here's what shocked me most: My wife

6 bottles for maintenance

Mounting Hole Diameter: Approx

AEXZR® 2-Way Magnetic Aquarium Scrapers 5.8+15/17（1），9.6+15/17 （2），19.1+15/17（4），36.9+15/17 （8） and you couldn't even seeNow you can easily wipe off any dirt, algae & moss lurking inside your glass aquariums, while not having to get your hands all wet and dirty with the 2 Way Magnetic Aquarium Scrapers. This cleaner has a 2 way scraper that effectively cleans your aquarium without ANY glass scratches! Very convenient and simple to use. Eliminates hassle and inconvenience, no need to use long handled tools, soak your whole arm into the tank, or drain the whole water!