Aquarium fish and everything you need to know about them is contained in this article. Tetras or characins and rainbow fish are the most popular choices.

Aquarium Fish -- Facts

1. Species:

   Tetras or characins and rainbow fish are the most popular choices of aquariums. Though there are several other choices like bettas and catfish, too. The compatibility of fish in a community tank needs to be judged first.

2. Size:

   Both are generally small fish. Little size variation may occur as per type.

3. Life Span:

   Life span of most of these is up to 5 years with good care and hygiene. Catfish can live up to 25 years.

4. Scientific:

   Rainbow fish belong to Melanotaenia family and characins to Characidae family.

5. Varieties:

   There are wide variety of aquarium fish available. The choice is yours as per your pocket and preference.

6. Origins:

   Most of the easily kept aquarium fish belong to the tropical regions of the world.

7. Physical Traits:

   Aquarium fish are characterized by their bright color. Tetras have one extra fin and are covered with scales. Rainbows have elongated hump or high backed bodies.

AquarAquarium Fish - Care

1. Water Conditions:

   Most of these fish prefer medium to hard water, slightly acidic with a pH of 6.5.

2. Food:

   Food requirements of aquarium fish vary as per their breed type.

3. Compatibility:

   Mostly tetras, rainbow, catfish form a compatible ring for an aquarium.

Aquarium Fish -- Concerns

1. Benefits:

   The amazing colors of most of the aquarium fish are unparalleled. Also the sheer activity of fish like rainbows is pleasing and stimulating to watch.

2. Liabilities:

   Regular water changes, cleaning and general maintenance of an aquarium are regular and tedious jobs.

3. Health Issues:

   Most of the aquarium fish can loose their color in too bright light. Also maintenance of the pH of water is essential.

4. Specific Care Needs:

   Care should be taken to keep fish like tetras and rainbows in a group of six.

5. Special Household Needs:

   The aquarium needs plants and driftwood for most of the aquarium fish species.

Aquarium Fish -- How to Choose

1. What to Look for:

   Look for fish that can easily dwell in a community tank with minimum specific requirements.

2. Supplies:

   Water tank, lights, filters, plants and several such things are needed to set up an adequate aquarium.