i am looking to convery my freshwater eclipse 20 gallon freshwater tank to a full saltwater one.would i need to buy all new stuff...icluding tank? a new filter? i know nothing about doing this so any help would be appreiciated. i dont even know if it can be done..thanks alot. also how much salt should i buy...ive heard id need a skimmer?
A 20g doesn't give you a whole lot of room to work, but it's a start if you can't afford a larger tank. Can you give us some indication of what you would like to keep? This will help get you some more specific direction in terms of the amount of space and equipment you will need.