Origin: These fish are found across a wide region throughout Southeast Asia, including Thailand, Cambodia and Vietnam.

Maximum Size: In aquariums they can grow to be about 8.5" long. Rarely as long as 10".

We estimate that a few of them would need an aquarium with at least 120-gallon water, and bigger would be better.

Behaviors: this fish species is a very active and fast swimmer. It's important to always keep the aquarium tightly covered, because Apollo Sharks are very skillful jumpers.

Compatibility: Some recommended tank mates include, Rainbowfish, Clown Loaches, Danios, Barbs, Gouramis, and many other medium size aquarium fish.

Click here to read more about compatible groups of pet fish.

Temperature: Apollo Sharks can live pretty well from about 70 to 80 degrees F., but they're probably most comfortable at about 75 to 78 degrees F.

Click here to learn about aquarium temperature, aquarium thermometers, and aquarium heaters.

Feeding: Premium Fish Food Flakes when small and Premium Pellet Food when larger.

This fish will also eat small fish that fit into it's mouth. So beware.

Click here to learn more about and shop online for premium fish foods.

Water Conditions: Apollo Sharks seem to be tolerant of a wide range of water conditions. Probably a pH of about 7 with moderate hardness is best.

Most water in the US is different but seems to be OK, so it's probably best NOT to adjust the pH or the hardness of the water.

Here in our facilities the water is hard and the pH is usually about 7.8. We ship them in this water.

Click 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 them in at least a 50-gallon aquarium, but bigger is better.

Later when they grow bigger, they'll need a bigger aquarium.

Decor: Apollo Sharks 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 water.

Click here for more about aquarium gravel.

Live Plants: are beautiful and improve the water quality. Click here for more about live Aquarium Plants.

Aquarium Filter: Bio-Wheel Filters are highly recommended. A Penguin 350B Filter in an aquarium with 50-gallons of water is OK, when they're small.

But when they've grown bigger, they'll need at least a 125 gallon aquarium with as many Penguin 350B Filters as will fit across the back of the aquarium.

Click here to learn more about aquarium filters.

The addition of Lava Rocks will keep nitrates in the ideal range. Click here to learn more about using Lava Rocks in aquariums.

Life Span: Apollo Sharks live for several years and possible many years 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 egg and become plumper, which may a clue to their gender.

Breeding: Apollo Sharks scatter a large number of eggs on plants or special breeding mops made of nylon yarn.

But because of their large mature size they're rarely spawned in aquariums.

Popularity: Apollo Sharks are somewhat popular in the hobby.

Names: The scientific name of the Apollo Shark is Luciosoma setigerum.

Variations: We know of only one type of Apollo Shark and no variations. But this fish occurs across a wide region, and so there are probably variations.

We hope you've enjoyed reading these comments.