silicone
			 
			 
			
		
		
		
		I used it to reseal my 135G freshwater tank 6 months ago and it works great !!! The silicone is still flexible and the fish are doing fine, so I don't think it contain fungiside?? if it does its not enough to kill my neon tetra. 
I bought them in Canadian home depot. 
		
	
		
		
		
		
		
	
		
		
	
	
	 |