I just picked up one of these to get a bit more current in my 125. I love the magnet attachment, and it has a small profile. I wanted to give some flow to clean up dead spots. Let me know what you think if you have one.
Love mine so far, had them six months or so I think. Just noticed the other day too that they've come out with more, all the way up to Koralia 8 (the new 5-6-7-8 are 'Koralia magnum #). Highest flow is 3250 gph! Not too shabby.