Hello. Thanks in advance for any advice. I'm getting cyano, and I'm pretty sure I need to increase my flow. I have a Hydor wave maker that i don't currently use because it makes my pumps clank on start-up. So I'm looking at the Hydor Koralia 5, because of the electronic start(no clanking with the wave maker). But, I'm concerned it might be too much flow. I have about a 2-3" sand bed, some LPS and softies, a clam and some fish and inverts. Do you think it will be too much flow?