I am thinking of replacing some of my existing substrate (gravel) with a substrate for plants. Does anyone have any advice on how to go about this. I was thinking of placing the fish with some of the existing tank water into 2 5gal hex tanks. How long would it be before I could place fish back into the original tank.
				
			 
	 
	 
 
		 
		  
 
		 
 
		 
 
		 
 
		