Koralia Evolutions... Click/thud noise
			 
			 
			
		
		
		
		Just got my reefkeeper lite controller set up with brand new Koralia 1050's.  I have them oscillating every 20 seconds.   I am hearing a click/thud noise that last less than a second everytime each powerhead turns on.  It is annoying and my fish are pretty scared of the noise.  Just wondering if anyone else was able to fix this?  Do I just have lemons?  These are supposedly able to work on wavemakers/timers silently. 
-Thanks 
		
	
		
		
		
		
		
		
						  
				
				Last edited by apex82; 03-15-2011 at 12:49 AM.
				
				
			
		
		
	
		
		
	
	
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