Soooo, a 15 inch fish in a 48 inch saltwater tank should be ok? If you are 5 feet tall, then a 17 foot space is all you would need.....and using the same logic and a Puffer as the victim, you would be 5 feet tall and over 300 lbs---since our Porc Puffer is a (ehhh) wide fish with a vorascious...