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Lake Regin
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Aggressive Freshwater Fish

85 products
GloFish®, Galactic Purple ®Tetra
(Gymnocorymbus sp.)
Starting at $10.99
What do you get when you cross a moderately easy to-care-for freshwater fish with the brightest new breakthroughs in the aquarium hobby? The perfect starter fish for your desktop, kid's room, or specialty setup! Fluorescent GloFish® have expanded to also include the new line of Tetras which also…
Blue Tang
(Paracanthurus hepatus)
Starting at $41.99
…amongst live rock. However, this active fish also loves to swim. Therefore, ample room to roam around your aquarium is essential for optimum health. Though peaceful towards most tankmates, the Pacific Blue will become aggressive towards other fish of its own species. To keep multiple specimens,…
Red Mickey Mouse Swordtail
(Xiphophorus helleri)
Starting at $3.49
aggression towards other male Swordtails. Care should be taken when housing more than one male. Also, the Red Mickey Mouse Swordtail is an accomplished jumper, so be sure to provide a secure cover for the aquarium. The Red Mickey Mouse Swordtail is a live-bearing fish related to freshwater aquarium…
German Blue Ram
(Mikrogeophagus ramirezi)
Starting at $8.99
…ramirezi appears to be an aquarium bulldog. However, this member of the Cichlidae family is actually one of the more social and peaceful freshwater fish. In fact, most Rams will actively swim with equally non-aggressive members of your community aquarium and are known to faithfully pair with…
Silver Arowana
(Osteoglossum bicirrhosum)
Starting at $44.99
…the group known as band fishes, the Silver Arowana is considered a true bony fish. Indigenous to the flood plains of the Amazon River Basin in South America, the Arowana can reach an intimidating 47 inches in the wild, and is often too much for all but the advanced freshwater aquarist to manage. It…
Black Convict Cichlid
(Archocentrus nigrofasciatus)
Starting at $5.99
…rocks or some inverted pots. Floating plants are recommended as a form of cover. Because of their aggressive nature, Black Convict Cichlids should only be housed with other more aggressive fish of the same size or larger.The Black Convict Cichlid is a cave-breeder and will accept a range of water…
Fahaka Puffer
(Tetraodon lineatus)
Starting at $27.99
…Puffer, comes from the lakes and rivers of Africa and can grow to a very large size. They will inhabit both freshwater and brackish waters of the river systems, but tend to do best in freshwater in the home aquarium. The Fahaka is brownish gray on the back fading to an off-white on the underbelly,…
Freshwater Asian Gold Clam
(Pilsbryoconcha exilis)
Starting at $3.49
…the Freshwater Asian Gold Clam in an aquarium of at least 15 gallons with medium to very fine substrate. The Freshwater Asian Gold Clam should not be housed with large aggressive or carnivorous fish as well as invertebrate-eating fish, such as freshwater puffers.Keep in mind that the Freshwater
Powder Blue Dwarf Gourami
(Colisa lalia)
Starting at $5.99
…Regular water changes are a must, as this gourami can be susceptible to disease. They should not be kept with large, aggressive fish, but are compatible with other small, peaceful fish as well as fellow gouramis. Loud noises often scare them, so the tank should be in a quiet area.The Powder Blue…
Synodontis Flavitaeniatus Catfish
(Synodontis flavitaeniatus)
Starting at $69.99
…as it will hang in an inverted position. They are wonderful scavengers, and are not overly aggressive. They also do not dig as much as other large catfish, making them a great addition to a larger freshwater planted aquarium. The Synodontis Flavitaeniatus Catfish will appreciate a fine sandy bottom…
Zebra Danio
(Danio rerio)
Starting at $1.19
…the Cyprinidae family prefers a well-planted aquarium with large open swimming areas. For best care, keep this peaceful fish in small schools with equally non-aggressive fish. Since they are omnivores, feed the Zebra Danio a varied diet of flake and frozen foods.Male Zebra Danios are generally more…
Angel Ram
(Mikrogeophagus ramirezi)
Starting at $12.99
…ramirezi appears to be an aquarium bulldog. However, this member of the Cichlidae family is actually one of the more social and peaceful freshwater fish. In fact, most Rams will actively swim with equally non-aggressive members of your community aquarium and are known to faithfully pair with…
Electric Blue Jack Dempsey
(Nandopsis octofasciatum)
Starting at $29.99
…to be less aggressive than its popular counterpart. The Electric Blue Jack Dempsey is a freshwater fish that originates in the murky warm waters of Central America. It has a base color of electric blue to gray, and displays many iridescent blue and green spots, giving this fish a spectacular…
Blood Red Eye Swordtail
(Xiphophorus helleri)
Starting at $7.99
…a breathtaking, saturated red coloration and the unusual red eyes of a true albino morph. The Blood Red Eye Swordtail is a definite "must-have" fish for any livebearer enthusiast. The male Blood Red Eye Swordtail has short, sleek fins with a distinct extension on the lower part of the tail,…
Topaz Puffer
(Dichotomyctere fluviatilis)
Starting at $23.99
…(either real or plastic), rocks with plenty of hiding places, and a sandy bottom composed of an aragonite-based sand. The Topaz Puffer can be aggressive to members of its own species, so care should be taken when housed together.Spawning occurs in brackish water. The eggs will be laid on the bottom,…
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