Above: Shown in the
picture just above is a premium quality Columbian Shark.
As you can see, it
has dark metallic silver with black fins and white trim on those fins, making
it a very attractive catfish.
This fish was about
2.5" long and swimming in one of our aquariums, when one of us snapped this
Water Conditions: Columbian
Sharks seem to be tolerant of a wide range of water conditions.
Probably a pH of
about 7.8 with moderate hardness is best, when they are young.
Most water in the
US seems to be OK, so it's probably best NOT to adjust the pH or the hardness
of the water.
As they get older
they need proportionately more marine salts in their water.
need to live in marine water like the water in
the Pacific Ocean, where their parents lived as adults.
Here in our facilities
the water is hard and the pH is usually about 7.8. We ship them in this
here for a lot more information about aquarium water conditions.
Aquarium Size: When
young and less than 3" long, it's probably best to house one in at least
a 30-gallon tank, but bigger is better.
They'll soon need
50 to 60-gallon aquarium. Then an aquarium with 100, 150, 200, 250-gallons,
and maybe bigger.
Shark do not need gravel, and a layer of gravel more than 1/4" thick
will usually fill with bits of uneaten food that will contaminate the
here for more about aquarium gravel.
Live Plants are beautiful and improve the water
quality, but Columbian Sharks need more marine salts in their
water, as thy grow older, and those salts will soon kill the freshwater
here for more about live Aquarium Plants.
Bio-Wheel Filters are highly recommended.
350B in an aquarium with 30-gallons of water is OK, when
they're small, and a Penguin 350B is the right
size for a 30 to 60-gallon aquarium.
grow to be 6" long they'll need to live in an aquarium with at least 75-gallons
of water and have a couple of Penguin 350B filters along the back edge
of that aquarium.
The bigger aquariums
will need proportionately more Penguin Filters.
here to learn more about aquarium filters.
The addition of
Lava Rocks will keep nitrates in the ideal range.
here to learn more about using Lava Rocks in aquariums.
Life Span: Columbian
Sharks live for many years and possibly
20-years or more with excellent water and premium food.
Gender: It's not easy to
tell the males from the females, when they're young and sometimes, even
as they mature.
As females mature
they often fill with eggs and become plumper, which may be a clue to their
Breeding: This fish spawns
in the ocean.
The males pick
up the eggs in their mouths, and swim upstream in rivers in South America,
where they release the fry.
As the fry swim
back downstream, some are caught and shipped throughout the world for
Popularity: In spite
of the comments above about their eventual size, Columbian Sharks
have been popular for many years.
We like to tell
our customers, what we know about each type of fish, then let each customer
decide which fish to buy as pets.
Names: The scientific
name of the Columbian Catfish is
This fish has several
other common names like the White Tip Shark Catfish, Black Fin Shark,
and many other names.
are no variations that we know of now.
here for a lot more information about keeping and caring for
Columbian Sharks, including a picture gallery.
We hope you've
enjoyed reading these comments.
We have 380-aquariums with lots-and-lots of popular aquarium fish plus lots-and-lots of rare fish!
We consider ourselves to be the link between the world's best sources of fish and the world best customers. We love our work, and we are very responsible.
All of our fish are Premium Quality Fish from the best suppliers in the world. Our fish have better health, more energy and brighter colors, as you can see in our pictures on this website.
We also offer lots and lots of information about keeping pet fish, all from the knowledge of the Bailey Brothers, who have a combined total of 100+ years of experience as breeders, wholesalers, and retailers of pet fish!
Our fish and our customers are treated with the best of care, and we work energetically everyday to make sure every customer enjoys their new fishy friends.
When you purchase pet fish from us, you know you're receiving premium quality fish and premium quality service.
"Received my fish last night and was so pleased! They all arrived alive and appeared to be healthy.
"Once in the tank, they became very active and are now thriving in their new home.
"Beautiful fish, I asked for color and aquariumfish delivered. Processing and shipping was extremely quick."
Nevin and DrTom, the Bailey Brothers
This website is owned and operated by the Bailey Brothers, DrTom and Nevin, who've been together in the fish business for more than 50-years.
The Product Manager has been with the company for more than 35-years.
So we feel very confident that this is the fishiest crew anywhere.