Let me start by saying this little floating ring has completely transformed feeding time in my aquarium. As someone with both bettas and shy tetras, the FREESEA feeding ring creates designated dining areas that prevent food hogging.

The 3-inch diameter works perfectly in my 5-gallon tank (though reviewers note it's too large for nano tanks under 3 gallons). Watching my betta immediately recognize the ring as 'his' feeding zone was fascinating - he now swims to it like clockwork at meal times!

Major pros: Contains food beautifully without obstructing swimming space. The plastic feels durable, and when properly attached (more on that later), it maintains perfect water level placement. My water stays noticeably cleaner since flakes aren't dispersing everywhere.

The suction cup attachment gets mixed reviews - I found wetting it thoroughly before applying creates a strong hold, but some users report it detaches easily. A clever hack from other owners: replacing the rigid arm with sewing thread allows perfect level adjustment.

While designed for standard flakes, I've successfully used it for freeze-dried bloodworms too. Just note that very small fish might find the ring's walls slightly high to reach over.

For tanks over 8 gallons, multiple rings or the square version (which offers more surface area) might work better according to experienced users. But for most home aquariums, this simple solution delivers exactly what promised: less waste, less mess, and happier fish at mealtime.