"Showed up in practically no time and exactly what I expected! Totally oxygen-filled tank again. Reason for replacement: Power Head was purchased a very long time ago, but while away, caretakers did"... (read full reviews)
"I upgraded from a 5-15 gallon filter that came with my 10 gallon starter tank. This new filter improved flow and the water is crystal clear now. Highly recommended."... (read full reviews)
"I bought one of these a while back and loved it so much that I bought another one for my other aquarium which despritly needed cleaning it was very mucky and dirty and this Filter cleaned it right up"... (read full reviews)
"I've used under-gravel filters before and have always liked the results. This one fit my tank perfectly and had options as to were I could have the riser tubes coming up along the back of the tank."... (read full reviews)
"It removed an enormous amount of debris in a very short period of time. The water was crystal clear. The aerated water made the fish swim more lively. They were lethargic before this. They don't mind"... (read full reviews)
"last long time-ease to use-ease to clean- cheep to use-filters can be reuse-I have 8 units 24 hours a day for years-two were purchase in 8/85- what can tell more. richard jensen colona il
ay- two"... (read full reviews)
"Prior to finding the 40i Whisper in-tank filter I was using Fluval U3 and U4 underwater filters in my Red Eared Slider tanks. They were OK but very messy and expensive on filter cartridges, which"... (read full reviews)
"I bought my QuietFlow for my 30 gallon a couple days ago and am shocked at how noisy it is. The motor noise is very loud compared to my old filter I had. It is a more powerful filter than my last one"... (read full reviews)
"I bought this filter and thought it would work great in my fish tank. Well, I think it worked very well, but the whisper did not work. The Impeller was so noisy that I had to close my bedroom door at"... (read full reviews)
"Bought this to replace the in-tank filter that came with an aquarium setup. Followed instructions for setting it up to the letter. After 2 days, noticed the level in the tank had dropped about an"... (read full reviews)
"I will think twice on another whisper filter not real quiet it seems to keep the water clear . but it will quit working at the most inconvient times. it does not like sand, I have a salt water tank I"... (read full reviews)
"i bought my bio wheel, and it worked good for about a month and then the wheel quit spinning. Put a new filter in, and it started to work again. after a week, it was back to not spinning. pulled whole"... (read full reviews)