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Species of freshwater fish that inhabit North American waterways include the channel catfish, rainbow trout, northern pike, coho salmon and largemouth bass. Two unusually large freshwater species are the paddlefish and the lake sturgeon. Some of these species are popular targets for both recreationa


Laterite in its pure form can be used as a fertilizer for freshwater aquarium plants. Pure laterite is a clay substrate that can be mixed in the aquarium gravel for constant fertilizing.


While the specific diet of a freshwater fish depends on its species, most eat smaller fish, leeches, worms, insects, crustaceans, plankton and krill. When kept in an aquarium, freshwater fish can thrive on a combination of fortified flake food, pellets, sticks and wafers.


Cloudy aquarium water may be the result of microbial bloom, which can be caused by adding too many fishes at once. Water may also turn cloudy white or gray when water is initially poured over sand or gravel. Green cloudy water occurs when algae blooms as a result of excessive nutrients in the water.


Taking care of aquarium fish entails weekly and monthly water changes, water quality tests, real and artificial plant and accessory cleaning, filter maintenance and scrubbing to prevent algae buildup over time. There are overlapping weekly and monthly duties, which must be performed in order to keep


Anchor worm, fin rot, dropsy and skin flukes are all common diseases for fish kept in aquariums. The causes and treatments for these diseases vary, and without quick treatment, the affected fish may die.


The American Shad, the Bluegill, the Chain Pickerel and the Florida Gar are a few of the many freshwater fish found in Florida's waters. Florida is also home to several types of catfish including the Brown Bullhead, the Channel Catfish, the Flathead Catfish, the White Catfish and the Blue Catfish. F


The difference between saltwater and freshwater fish is that saltwater fish need to prevent hyponatremia and freshwater fish need to prevent dehydration. This is because water tends to move from a place that has a lesser concentration of salt to one that has a greater concentration of salt.


A three-gallon aquarium can support three 1-inch fish. The basic rule of thumb when adding fish to an aquarium is that each 1-inch fish needs one gallon of water to give it plenty of room to swim and grow.


Edible freshwater fish include catfish, whitefish, bass and crappies. Other fish that can be found in fresh water are trout and salmon, but these fish also return to the sea. They return to fresh water to breed.