I am thinking about setting up a marine tank to put a puppy face puffer and as I live close to the water ,I was wondering what were the thoughts on getting water from the ocean,or is store bought better?
It is never a good idea to get water from the wild. It may contain pathogens & pollutants that can harm your fish. There is an aquarium here that uses ocean water but its taken from a deep source many miles off the coast & gets extensive treatment before going into the tanks. Unless you're able to go through such measures, i'd recommend simply mixing your own.