Setting up an aquarium will vary depending on whether you want to keep fresh-water or marine (salt-water) fish. The general principles are the same although with only a few minor differences. The following is the procedure for fresh-water aquariums and asides will be given providing you with the changes you need to make should you wish to set up a salt-water aquarium.

Get all your materials together. These should include the following:

Tank (such as an AR 620 (180L))

Cabinet for tank (not essential)

Hood (if not integral to the tank)

Background if desired

Heater Substrate such as sand

Substrate such as gravel Light-tube

Water-ager Salt

Nitrovec (water-ager) Hydrometer

Bucket Circulating Pump

Steps in how to build aquariums

1. Before you do anything to your tank decide whether you would like a background for your tank. If so, paint or purchase a background for the tank. If you decide to paint one. This should be done on the OUTSIDE of the tank so that the chemicals do not affect the water quality.
2. Put your pre-chosen tank on its stand in the position you want. Remember it is a lot easier to move it now before the water and other things are added. So think about this carefully. One consideration is you should ideally not set up your aquarium in direct sunlight. Sunlight will promote algae growth and may potentially overheat your aquarium.
3. Get all the materials you will be using as the substrate for your plants or corals. A medium to fine gravel is ideal. Wash everything thoroughly. Use a clean bucket set aside specifically for use with your aquarium. Wash all items to be added to the tank in the bucket until the water runs clear. Do NOT use any detergents of any kind.