Types of Aquarium Systems

Basically there are three types of aquarium systems which are categorized based on dissolved salt  and you can choose from : Freshwater, Brackish.or Saltwater

Group of Swordtails

• Freshwater System - This is the most popular aquarium system all over the world and mimics the water  of lakes, ponds as well as streams and doesn't have salt like marine or saltwater aquarium system. Freshwater fishes are easily available in all pet shops and are cheap as well as easy to maintain.We can further categorize this system into Tropical and Coldwater. Goldfishes, guppy, Oscar, Flowerhorn, Catfishes are some of the freshwater fishes.

  

  Blood Parrot Cichlid
• Brackish System - The water in in this system lies between fresh and marine in salt content. This is the least popular system because brackish water fishes come occasionally in fish stores. Some popular brackish water fishes are Scats, Pufferfish, some Mollies, Monos and Archerfishes.

  

  Brackish water fish Scat

• Saltwater System - Reef, marine or saltwater aquarium system are also popular among aquarists. Salt content in this system is higher than that of brackish water. Cost for maintaining salt water aquarium is higher than freshwater or so I have read in many articles since I don't have the first hand experience. Clownfish, Angels, Butterfly fish are some of the saltwater species.

Group of Clownfishes

 Thanks for reading :D 

Comments, Questions and Suggestions are always warmly welcomed.