Okay, let's talk about this little square lifesaver. I've tried at least 5 different feeding rings before, and this one? It actually stays put in my moderately current-heavy tank. The transparent design is genius – it's like my fish don't even notice it's there until dinner time.
What surprised me most was how my clumsy goldfish stopped getting stuck (RIP to the three tube-style feeders they destroyed). The square shape contains flakes way better than round ones, though fair warning – my clever angelfish has figured out how to grab entire frozen shrimp cubes if I'm not watching.
After three months of daily use and weekly scrubs, it's still crystal clear with no scratches. Pro tip: soak it in hydrogen peroxide for an hour if algae builds up – works like magic. Would I buy it again? Already have two spares in my fishkeeping toolkit.