I have a six month old aquarium, I bought a diamond watchman gobby which I have previously had good experience with but never had in the current aquarium. Has Fiji pink argalive sand. now looking after a day the water is quite cloudy, is this something that only happens at the start until the gobby has been through all the sand or do I have too fine sand? see my filter roller has used 1m in saw on my reefer 250