The Silent Air B11 pump is life insurance for your fish- the bubbles go ON when the power goes OFF. This battery powered air pump is a must for your precious aquarium fish. The Silent Air pump automatically turns on when it detects no A.C. electricity, providing your fish with life-saving aeration during a power-outage.
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So far this product has been great. I unplugged it and turned it on to make sure it works. It worked great. I thought the noise level was fine. I wasn’t able to check how long it runs before the battery runs out. I heard it was roughly 7-8 hours. Thanks
This was the best battery-powered air pump I could find and it works well for traveling, which is why I bought it. But it is very loud and moves almost violently. For some reason the one I have will only work with the battery power. The electric cord just won’t work. Again, I’ll stress how loud it is. I would only recommend it because of the price and it works for traveling in a car if you wrap it in towels to smother the noise.
Purchased this as an economy pump for when the power cuts out,,,well it is definitely that HOWEVER it is Obnoxiously LOUD and only disperses a minimal amount of air,,,i have a 55g tank
still better than nothing and better than a tank filled with dead bodies
Quiet, reliable air pump. Great buy for the money! Compact and easy to
set up and use. This is my second one purchased. The first one DID NOT fail….I accidentlly got water inside and that pretty much ruined it.
I bought this since I live in Florida and the storms that come through here can leave people with no power. At first I had my doubts about this. So this is what I think of it.
Pros: small, uses D batteries, last a long time, works when power is out and delivers what it is supposed to do.
Cons: Loud. this thing is loud but I have an aquarium cabinet and I put it under there on the shelf and I never heard it when the power went off. So if you have it out in the open, it will be loud. Suggest placing a cloth or something underneath it so it will cut down on the noise.
Overall, I love it and will not be without one. I only gave it 4 stars because it is so loud. The rest is definitely a 5 star.