Penn-Plax Deluxe Bubble Disk

This item works good. However what I found annoying was that it doesn’t stay down at the bottom of the tank. It kept floating up to the top. So for that I gave 3 stars. It should come with a suction cup or two I feel like. I would suggest buying aquarium safe suction cups, and gravel. To suction the air tube where you want it, and gravel for the extra weight on top of the bubble stone to keep it at the bottom of the tank. I already had some handy. I tried putting some heavy tank ornaments on the stone but it just wasn’t heavy enough. I also put a decent size aquarium ornament in front of the stone to help pin the bubbler to the wall of that tank. I did put something under the air pump so it’s not as noisy and doesn’t vibrate off the edge of the table. I used aquarium sponges but you could use something else. I don’t have the bubbler on full blast either. I do keep it turned down on the lower side, but my daughters little betta fish seem to like it so far. Happy fish happy life