According to the instructions you don't have to preform a water change. Only if you have bad water stats.
So you would just start the med again.
http
/www.eshalabs.eu/pages_eu/product_engels.html?zoom=2
				
			So you would just start the med again.
http
/www.eshalabs.eu/pages_eu/product_engels.html?zoom=2
	            