BLOTFISH Fish Tank Bubbler Aquarium Air Stones, 4 Inch Nano Super-High Dissolved Oxygen Diffuser Makes Super Tiny Bubble Aerator for Fish Tank Air Pump Hydroponics

Once it's in the tank it works very well but the tubes don't fit together very well & keep coming off.

This is small and neat air stone ideal for tank use giving a very fine stream of soft air bubbles as seen in the listing pictures.Easy to set up, but of course does assume you have a suitable air pump in-situ already.Noting not to like and nothing above and beyond what you'd expect from a mini stone - it simply does what it says it does.

I confess it's early days here with this "BLOTFISH Air Stone for Aquarium Fish Tank Bubbler" as I have only just got it recently. It arrives safely packaged in an outer cardboard box and then inside the component pieces are in plastic bags. There is a small amount of set-up involved, it's not quite plug and play straight from the box but the set-up is fairly minimal and pretty easy to do.The parts are all made of plastic. The seem reasonably strong and sturdy insofar as I can tell. They should be sitting still inside your tank anyway so they maybe don't even need to be super robust. This is the small version designed for smaller tanks. It doesn't take up much space but I believe there is a bigger one available from the manufacturer should you need it. Once setup and running in your tank it is quiet and efficient, bubbling away nicely.I'm happy with the bubbler, it gets a very solid "so far, so good" from me as it was easy to setup and has performed well so far. The only test it is yet to pass is the test of time and there's no way of knowing right now how it will fare but I've no reason to be anything other than positive based on my experience so far. Happy with item and for what it's worth I think it represents good value at the currently listed price of £9.99.

Item did not work as expected. My pump works fine and is 5W so I expected to see plenty of bubbles. Even without the flow rate valve and non return valve, my pump could only get the tiniest stream of bubbles. I had soaked the stone for two hours so not an issue there. Even tried using my own tube not the one as supplied, but still no bubbles. Returned to Amazon. Sorry, cannot recommended this item. This was the smallest 2 inch version.

Glad I picked this up for my fish tank. The air bubbles are super tiny and create a nice flow in the water. My fish seem really happy with it and I love watching the bubbles. Installation was easy and it's been working lovely ever since. If you want a reliable and cute accessory for your aquarium give this air stone a go!

I really like this air stone however I am a little disappointed in the fact it doesn’t bubble as much as the image shows. Easy to attach and came with all the tubing

Puts out a lot more bubbles than my small, ball stone. It probably has the same surface area, but the bubbles aren't fighting gravity now. The whole disk isn't filled initially, but does get wider over time. But even straight in the tank, it was at least double the bubbles.The shrimp LOVED playing in it for the first hour, but the novelty has worn off, I guess.Very impressed that it came with silicone tubing and connectors. I've always had to purchase those separately. it's nice and weighty, too.

Easy to connect to an air pump, lets out a nice flow of air bubbles. It stays put in the tank. This size is for a smaller tank. It’s not very noisy. It doesn’t come with an air pump though, you have to buy that separately.The design works well and good value for money 👍🏻