Let me start by saying this feeder cup *looks* promising—its transparent design blends seamlessly into my aquarium, and the glass material feels sturdy. I tested it with live blackworms for my betta, and initially loved how it contained the mess. But here’s the catch: the worms took FOREVER to escape (we’re talking 2 hours!). The tiny slots might as well be a worm maze.

The suction cups? A gamble. One stuck like glue (props!), but another arrived warped and stained—like it had been salvaged from a yard sale. I had to return two units before giving up. If you get a good one, it’s great for keeping tanks clean, but QC is nonexistent.

Surprise MVP use? As a mini planter! The oversized slots dump worms too fast, but they’re perfect for anchoring anubias or bucephalandra. I now use mine to grow aquatic plants—way more reliable than feeding.

Verdict: 3/5. Works *if* you win the suction cup lottery or repurpose it creatively. For $10, expect inconsistency.