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			#1  
			
			
			
			
			
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|   Anyone else want to take a stab at what this stuff may be? 
				__________________ 300g Basement Reef - April 2018 | 
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			#2  
			
			
			
			
			
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|   That's bacteria from the NoPoX dosing.  If you switched to biopellets in a reactor with the output hose going directly into your skimmer intake then you won't get that bacteria in the sump. | 
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			#3  
			
			
			
			
			
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|   Hmm interesting... I ran vertex biopellets in a reactor placed in my skimmer section for months with no real effect on nitrates.  I may have to reconsider plumbing in a biopellets reactor in my new build as I don’t want a slime covered sump.   Just when things were nice and stable something like this happens  
				__________________ 300g Basement Reef - April 2018 | 
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			#4  
			
			
			
			
			
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|   It's definitely bacteria. I seen it before in my holding tanks while setting up my current display. I believe the actual color of that slime is originally translucent but probably with all the gunk running through, gives it a brownish tinge. | 
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			#5  
			
			
			
			
			
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|   Ok well thanks for confirming as I was initially thinking of an algae.  Now my question is for my new tank build is it worth getting rid of NOPO-X and will biopellets be sufficient. 
				__________________ 300g Basement Reef - April 2018 | 
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			#6  
			
			
			
			
			
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|   Biopellets will always be sufficient. I think the key is more about dialing it in correctly without overdoing it. That slime is probably a result of some stagnant areas in the sump. You could try a test and add a small power head around the affected areas and see if it disappears from that particular spot(s). Or even an airstone. | 
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			#7  
			
			
			
			
			
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|   Quote: 
 
				__________________ 300g Basement Reef - April 2018 | 
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