LONDAFISH Aquarium Chillers Fan Adjustable Aquarium Water Cooling Fan Fish Tank Cooling Fan Marine 2 Fan

Clips on secure and quite tidy Set up. The hi speed can be a tad loud but the option of a slower speed makes it less noisy

This arrived at around 4pm, my tank with the current heat was at 29°C... it was opened and on My tank in 5 minutes, current time 19:35, my tank is now at 26°C, its no more noisy than the big air fan I currently have trying to blast a bit of cold air into the house.(105L tropical aquarium) the fish seem a lot happier now that the water is cooler

It blows some air, but 3x more noise than air from these little guys. Did not cool my tank, just kept the same temp. It does blow air but only little bit and super noisy. I got myself normal turbo desk fan that is half as noisy and cools my tank much better. I put it face down on a plastic grid that is on top of aquarium.

The fans work great but after 2 hours adjusting and cutting the metal so I could actually use them it was exhausting! And now I can’t shut my lid even half way over because the fans are not a good fit!!

Super easy to use and has good amount of cooling without the too much force on the water. Along with iced bottles managing to keep my tank at 16.9/17.Very Happy with it.

Very poor quality. When I went to plug it in on first usethe small plug port fell inside the fan and I was unable to use it.

The media could not be loaded. No problems , cools the tank fine on the low speed

This product is amazing would highly recommend. Easy set up and works brilliantly

Helped to lower the tank temperature immensely. In Arizona summer the tank gets around 82.7° on my 125 gal fresh water with a sump. Since I added the two blowers on the sump it’s down to 78.2°. Easy to install. Two double fans fit well on the sump. The fans omit a tolerable amount of sound. Great price. Very happy with the purchase!

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Ottimo prodotto, riesce effettivamente ad abbassare la temperatura di circa 3°. Lo Consiglio specie nel periodo estivo.

Es kühlt die Wassertemperatur optimal runter.Die Wassertemperatur von meinem Aquarium war zu hoch, die Temperatur war nicht gut für Otto, das Axotol.Mit Hilfe von den Ventilator habe ich wieder eine Wohlfühltemperatur.Top zu empfehlen

Avec une température ambiante de 28 degrés dans la pièce, les ventilateurs permettent de diminuer la température de l'eau d'environ 1 degré par 1/2 heure en petite vitesse (Il y a 2 vitesses de ventilation).Testé sur un petit aquarium de 30 litres.