Jewel Air Diffuser

overly expensive for what it is but works well and nothing to go wrong

This is both far worse and far better than I expected... but please bear with me, I'll explain!My initial impression was that it's not obvious or easy to fit this. I have a Juwel Bioflow M, with my Lido 120, and the bits don't fit. The tube is wider and will only fit (with considerable resistance) onto the existing tube, you can't just replace it. This means you need both tubes, both of which have odd elbow angles, and ends up poking a long way out into the tank. The air tube is however quite long enough to poke above the surface if you look at and plan the odd elbow angles to take the tube level with the surface. But not the quick replacement part I'd expected; added to mediocre quality and a high price, disappointed.But. Switched on and with the nozzle open, and wow! The pictures on the packaging showing some big bubbles coming from the nozzle are misleading.At first, apart from some noise, and having wrestled with the plastic bits I was disappointed I couldn't see any decent bubbles. Then I noticed the flood of micro bubbles blasting into the tank, far more and far smaller than from an airstone. And they don't just rise to the surface, they swirl everywhere. This can be adjusted with the valve on the air intake, but it can flood the tank with millions of air bubbles.I now have a shoal of Rasbora who are addicted to surfing in the stream of bubbles, the whole tank is more full of life, and even shrimp seem to have more energy. All in all a great addition to Juwel aquarium!

Some of the reviews said it doesn't work very well. Mine is fitted to the outlet pipe of my second external filter and when I first fitted it I had to add some electrical tape to outlet pipe so it would fit properly, and then nothing, no bubbles. I left it and the next day loads of bubbles! I have worked out that when I do a water change it stops working, so when the tank is refilled I lift the diffuser out the water and gently replace in situ and then it works again, also the bubbles increase after it has been left for a while.

I had seen quite a few negative reviews on this product saying it didn’t work, tube pipe too short etc but decided to ignore them and purchase this item. It took approx 30 seconds to assemble and fit to the outlet of the pump on my Juwel Rio 180 tank and there is now a fast stream of small air bubbles.Simple yet effective product and very easy to setup.

This is an excellent device. I was a bit uncertain when purchasing it because of some other reviews saying it was difficult to fit or that the tuning was too short. However, it honestly too 20 secs to install in my Juwel Rio 180 and it's now up and running with lots of micro bubbles generated in the pump flow and great agitation at the water surface to oxygenate the tank.Significantly cheaper and quieter than a conventional air pump and stone.

This small piece of equipment almost as good as a skimmer and puts extra air into our fish tank. A good buy!

Easy to assemble, the end cap fits snugly onto the pipe, and the airline tube is quite rigid so the air inlet won’t flop down into the water.I had a little trouble fitting this to a Juwel Eccoflow 600 in my Rio 180. The diameter of the pipe was just a couple of millimetres larger than the pipe it replaces, meaning it wouldn’t fit onto the pump outlet without falling off. The solution was to use a hacksaw and aquarium sealant to join the old and new tubes together, which resulted in a perfect fit. Clearly this isn’t a problem for everyone but this solution works if you have the same issue.Also, as other reviews have mentioned, the airline tube is quite short, meaning that the air inlet only just about reaches above the water line. If I filled the tank to the max level stated by Juwel, it would be completely covered. You may find you need to cut a slightly longer length of airline tubing if this is a problem for you.Once fitted the result is great. Tiny air bubbles spray right across the tank, an effect which looks superb under LED lighting. My platy fish are enjoying swimming through the bubbles.

Great product, the fish really love it. I did find that it stops working after a while, but, after messing around a bit, found that was due to the water flow from the Juwel inbuilt filter, so a quick rinse of the top sponges increased the flow and the bubbles came rushing back with a vengeance. Since installing, my plants have a whole new lease of life, and helped get to the look I was really after.

Produit conforme. Un peu difficile à régler, mais fonctionne bien.

Zusammenbau/Montage, selbsterklärend einfach und schnell..der Diffusor und der Luftmengenregler sind von gewohnter Juwel Qualität..der Diffusor funktioniert sehr gut, auch etwas weiter unter der Wasseroberfläche,ist dabei sehr leise und erzeugt eine sehr starke Strömung..der Luftmengenregler lässt sich etwas schwergängigund die Luftmenge eher grob einstellen..!!..im Luftmengenregler-Inneren befindet sich ein kleines Schwämmchen,wenn man dieses entfernt funktioniert das ganze etwas besser und leichtgängiger..!!der Winkel-Adapter passt und funktioniertist aber von schlechter Qualität und auch die Passform könnte besser sein..(sehr dünnes Plastik, unsauber verarbeitet..)

reçu dans les temps prévus. facile à mettre en place et une fois réglé l'eau est oxygéné sans apport d'énergie externe

Este producto lo he adquirido para la oxigenación de mi pecera Juwel.

Questo accessorio per gli acquari Jewel permette di ossigenare l'acqua e far star meglio i nostri pesci.Si attacca alla fine del filtro e non necessita di pompe in quanto utilizza il sistema venturi.È perciò anche meno rumoroso di una pompa da attaccare alla pietra porosa.Il rumore che si percepisce è un leggero crepitio, non particolarmente fastidioso soprattutto con l'acquario a coperchio chiuso è praticamente silenzioso.È possibile regolare la quantità di bolle grazie a una rotella.