I had a tight budget and was in need for a small filter for a 5 gallon tank. I decided to pick up this filter to give it a try. It was a waste of money. The filter tub is actually three parts that fit together very loosely so it allows for air to get through the intake if the water level is not kept very high. This makes the filter very loud and makes it have less water filtering power. It also needs to be perfectly leveled otherwise it will not want to work. I was hoping this would be a good product but I was sorely disappointed. I went out and bought cheap internal filter that has worked out better then this.

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30gL heavily planted: south american community tank
15g mod. planted: nano fish community tank
6g long(custom tank) mod planted: 6 bettas w/ dividers