Tetra Whisper Internal Aquarium Power Filter with BioScrubber

I was searching for compact water filter for my 40 gal fish tank. Previous I had run for 10years so may be its time. From the Small pic on my phone and by the size of tank they recommend Ok may be that one is OK. When it arrived I thought OK that is a bit too big and how you attach it to the outside wall then after looking at bigger pic on that box ( no other instructions) I realized that it should be INSIDE the tank. That ugly THING would occupy large portion of my tank!! What the point to have it if I cannot see my fishes Aquariums are decorations anything other then fish and plants supposed to be hidden . That is monstrosity!!

I have to give it 5 stars because it's exactly as advertised. Whisper QUIET. Sad thing is when I saw that water falls out of it, I was hoping for a water falling sound but it's REALLY quiet. I ended up raising it a bit with the suction cups provided so it would make more sound. So far, so good.

Using this filter in a 10 gallon planted tank that houses a crayfish. It was easy to set up. I keep the water level just under the top so I get as small of a waterfall as possible. The filter itself is very quiet.

This is perfect for my 10 gallon tank! I even have goldfish and it handles the load keeps a crystal clear tank and best of all it's designed so none of my fish can get trapped

If I could give this less than one star, I would. This filter is very poorly made with nothing to hold the bio bags or plastic piece in place. It goes inside the tank taking up a big portion of the swim space for our fish. The size chart is also off. We got the size that is supposed to fit our tank, but it was still too tall.

I own 2 turtles and currently have them in a 40 gallon breeder ( Don't worry, I'll size up as they grow) and this is a very decent filter for the price. It keeps the tank crystal clear in between water changes, the filter cartridges are inexpensive and easy to use and the filter itself is not that loud. I wouldn't recommend this tank however for anything less than 15 gallons. It's a little bulky. I originally bought a filter specifically marketed for turtles, and I hated it,plus it was over 2x as expensive as this one. The only true down side, if buying for a turtle tank, is that the suction cups for the back are hard to put in,they fall out sometimes and are pretty weak. My turtles will pull I own 2 turtles and currently have them in a 40 gallon breeder ( Don't worry, I'll size up as they grow) and this is a very decent filter for the price. It keeps the tank crystal clear in between water changes, the filter cartridges are inexpensive and easy to use and the filter itself is not that loud. I wouldn't recommend this tank however for anything less than 15 gallons. It's a little bulky. I originally bought a filter specifically marketed for turtles, and I hated it,plus it was over 2x as expensive as this one. The only true down side, if buying for a turtle tank, is that the suction cups for the back are hard to put in,they fall out sometimes and are pretty weak. My turtles will pull the filter off the tank wall occasionally, which causes a mess. Over all though, a good filter that does it's job. … more

It works great. I had to order 2 because I have a huge tank (40 gal) and it's too much water for one pump to keep it clear but the 2 pumps are doing fine.

I got 2 of these for my 2 bettas in their 5 galllon. Firstly its very difficult to try and hang on the back, the clip tends to get stuck so you end up moving your whole tank and scaring your fish if you move it to adjust it to the right height in your tank. Second, it doesn't give off enough surface agitation to keep down oils in their water. I keep up with weekly water changes and there's never any reason for that much oil to build up over one night, but after running it for a full day there was so much oil on the top of their water. My last reason is the size, it's massive for a 5 gallon and wouldn't fit in anything smaller than that without taking up to much room, along with its very harsh I got 2 of these for my 2 bettas in their 5 galllon. Firstly its very difficult to try and hang on the back, the clip tends to get stuck so you end up moving your whole tank and scaring your fish if you move it to adjust it to the right height in your tank. Second, it doesn't give off enough surface agitation to keep down oils in their water. I keep up with weekly water changes and there's never any reason for that much oil to build up over one night, but after running it for a full day there was so much oil on the top of their water. My last reason is the size, it's massive for a 5 gallon and wouldn't fit in anything smaller than that without taking up to much room, along with its very harsh downward flow into the water, it makes it very hard for my babys to swim. This filter really would be great for a 10 gallon, but definitely not good for small tanks with any weak swimming fish. Another note:you do have to add something over the intake if you have sand as your substrate. Which was also a little annoying but not the end of the world. Gonna switch these out for a sponge filter. … more

I was excited to get this filter. It came, but it does not work. And the suction cups doesnt stay put. So, i need to return.

I just moved my beautiful Crowntail Betta, Phoenix, to a brand new, order online after hours of shopping, 8 Gallon tank (from a 5 gallon). The tank is gorgeous but the pump/filter rattled so much it made me insane! I tried everything to stop it and couldn't. If I felt that way, I couldn't imagine how my delicate boy felt..well, I could. My vibrant, beautiful, show-off went into hiding! So I got online and began looking for a quiet filter/pump. After reading reviews, I ran out and bought this (I couldn't wait for delivery) and a bottle of AccuClear as his water was a little murky after I did a 2 gallon water change. I came home, rinsed the 'cup', mesh filter and BioScrubber. Then you just I just moved my beautiful Crowntail Betta, Phoenix, to a brand new, order online after hours of shopping, 8 Gallon tank (from a 5 gallon). The tank is gorgeous but the pump/filter rattled so much it made me insane! I tried everything to stop it and couldn't. If I felt that way, I couldn't imagine how my delicate boy felt..well, I could. My vibrant, beautiful, show-off went into hiding! So I got online and began looking for a quiet filter/pump. After reading reviews, I ran out and bought this (I couldn't wait for delivery) and a bottle of AccuClear as his water was a little murky after I did a 2 gallon water change. I came home, rinsed the 'cup', mesh filter and BioScrubber. Then you just place them in the 'cup' and into your tank. There are adjustments on the back of the cup so you can place it higher or lower. It was set perfectly for my tank. I plugged it in and it IS whisper quiet! I also like that I don't hear the water trickling over the edge of it. I plugged it in around 6:30pm and by 6:30am the water was clear! Didn't have to add the AccuClear afterall! Phoenix is a curious fella and loves to play where the water comes out. However, it's important to note that the BioScrubber has little plastic spike-like numbs on it and that is the piece that faces the front of the 'cup'. Because Bettas are curious creatures, I was concerned he might try to *jump in and explore so I placed a piece of Fluval sponge inside to keep him out. I'm happy to report that Phoenix is out of hiding and enjoying his new surroundings! I love when he shows off! He's a perfect example of how well Bettas do when cared for properly. Please do your homework before taking one home. On behalf of all Bettas and those who love them..thank you! *I have another Betta who did jump into his filtration box and thankfully, there was nothing in it but water..and now a large Fluval sponge! Those things are handy! And for those of you wondering about the markings on top of his head, that area was gold and is turning blue. … more