スーパーフィッシュ クリーニングスポンジ

Finally, a sponge that actually gets rid of the stubborn algae ring around my tank's waterline without leaving scratches. The firm but non-abrasive fibers make cleaning a breeze.

I've had terrible luck with other sponges scratching the glass, but this one's non-abrasive fibers really are gentle while still cutting through tough algae. Charges up quickly too—no more waiting around after a cleaning session.

The firm fibers handled the limescale crust along the waterline way better than my old scraper, and the non-abrasive side kept the glass totally clear of scratches. I’ve been using it every two weeks for a month now, and the stubborn algae patches come off with just a few swipes.