boxtech Aquarium Nano Air Stone BT25-35 (35)

It's only acrylic not glass if you think

Lovely diffuser. Worth the price. It can be quite noisy if you have it on the highest power but I like the sound of the bubbles. You could easily turn the power down and then it’s almost silent!

Great size and seems sturdy, should last awhile.

I purchased this for my sister she told me it was absolutely garbage she threw it in the bin 15 euros down the drain

Works as described very good price would buy again

Pro: inexpensive, small and sticks well to glass wall. Had a similar Boxtech but a larger disc which didn’t give out more bubbles and no control over the strength and bubbles output. Also that model, the disc grew algae on the white disc where bubbles emerge and that version could not be attached to glass wall. This nano version means you can adjust the height easily. Adjustment air control provided so you can splice the airline tubing connecting it. A reviewer put comments about no instructions provided and couldn’t work it out. It is so easy - look at the photo and you can work it out. Con: plastic not glass but doesn’t matter the material. As stated suction caps have a shelf life when immersed in water or silicone ages by itself over a long period of time. Summary: Recommended