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I have a freshwater aquarium in which one of my larger fish is getting cloudy eyes
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The Walking Catfish is the only known air breathing freshwater aquarium catfish. It comes in both a standard black and albino variety. These catfish are extremely smart and will start to recognize and even come to their owners after a short while. They thrive in tanks that employ both water based and land based habitats. These fish will attain a length of almost a foot and are very aggressive (read “they will eat anything that they can get in their mouths”) so it is best that they are kept with only larger fish. They are also scaleless, covered in a mucus like coating, so fine substrate is recommended.
Large Freshwater Aquarium Fish
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As with the African cichlids, the is on most aquarists list as one of the most beautiful fish in the hobby, freshwater or saltwater. A very peaceful fish with a calm demeanor, the discus requires more specialized care than most other beginner community fish. It requires very specific water parameters, a large tall tank with plenty of live floating and rooted plants, and a strict partial water change schedule. Because of these requirements, discus fish are best left to intermediate and advanced aquarium fishkeepers. Dec 20, 2016 - They make an excellent supplement for medium to large freshwater fish and provide Beta Carotene, which enhances color in aquarium fish.
Photo provided by FlickrJun 29, 2016 - One of the largest families of freshwater tropical fish suited for the home aquarium is the Cichlids
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Freshwater aquarium fish include the most familiar, popular types of aquarium fish, such as guppies, black mollies, neon tetras and Siamese fighting fish, or Betta fish. Raising fish requires know-how and specialized equipment. A large area for tank set-up is required, such as a separate room in your home. First learn about government regulations and how you will sell the fish. This will help you decide if you can make a reasonable profit breeding fish.Oscars are a very popular fish in the freshwater world because of their "dog-like" personalities. They can often learn to recognize their owners and even show moods at times. These fish are very hardy and can survive even some of the worst conditions. However, this does not mean that they should be subjected to them. Oscars can regularly reach a size of 11 to 12 inches and some have been measured at over 15 inches in very large aquariums and in the wild. Most experienced aquarists will tell you that the bare minimum for an Oscar is a 55-gallon tank. Oscars are also very messy eaters and require extra filtration. They can also become very territorial if kept in too small of a tank. This will mean you can not keep anything else with them, unless you have a very large aquarium (most say around 125 gallons).Several freshwater fish are “live bearers” rather than egg laying fish. The largest family of fish on earth, the Cichlid is an example of this but more on that later. Many of the most common aquarium fish such as platties, mollies, and swordtails are also live bearers and when left to fully populate a tank, leave a very striking display of fish. Some clients have generation after generation of fish and when left without the presence of any other tank inhabitants that can be deemed a predator, the breeding rate of these fish will increase dramatically.This freshwater shrimp is often used as fodder for large aquarium fish. They have recently become more popular as a pet because they are easy to care for and breed. Many fish-keepers find their transparent appearance quite unique and appealing. Providing there are no predatory fish in the tank, these invertebrates will survive and thrive.