
I have 3 corals in my tank to compare so here it is. The suction cup mounts are completely unreliable, but I was able to use one of my Koralia magnetic mounts to hold them in place. The propellers are quite small compared to the size of the pump, it seems they could make them a bit smaller. When I first applied it I found it too expensive for the flow just after I removed the flow guides and the water output increased so much I would say the flow rate is pretty close. They'll move some water and the price is right, but I don't know if I'll buy another one if this one goes out anytime soon.

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