My friend has some of these pumps on his tank, hooked up to a wave maker I sold him that I wasn't using. He's ja them or his over a year. They are a little noisy when clicking on and have some issues, but for the most part have held up very well even with constant on off switching from the wave maker. They have outlasted all the koralias I have. Me personally, I prefer a little more of a trustworthy company (ecotech/tunze) but to be completely honest these things are worth the money for someone needing a quick or cheap solution. If I had to
Choose between these and koralias I'd probably get these because every koralia I have used only lasts six months, my friends have lasted longer...plus two were less than a single koralia of similar flow rate.
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