In my experience yellow Fiji leathers are trickier than regular leathers like toadstools as they tend to have a mushier texture and tend to tear easily so what I find works best is to use a piece of pvc pipe or something and place rubble inside and set the frag inside on top of the rubble and put into a low flow area. Within a few weeks the piece will attach itself and you're all set. 
		
	
		
		
		
		
			
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Greg
			  
		
		
		
		
	
		
		
	
	
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