The key to maintaining a successful and healthy freshwater aquarium is buying the right kind of fish. Pet stores or Fish suppliers keep numerous varieties of alluring fish (from juvenile to adult) to make you buy those. But, remember that not every kind of fish is as healthy as you would need to keep in the aquarium. So here are a few things you should consider before choosing the right fish for your aquarium.
A sick fish may affect the lives already residing in your aquarium by bringing them several diseases. So all you need to buy is a couple of healthy fish for the tank. Observe the movements of the fish in the pet store tank and make sure the species swims effortlessly. Watch if there is any discoloration, folded or damaged fins of the fish. The fish you will choose need to have clear eyes and flat scales. Breathing should be normal and slow. Better feed the fish yourself and look if it eats readily. Never purchase fish from a tank containing dead fish.
As they mature, many species grow bigger which may not suit your tank size. So there should be enough room in the tank for the fish. Also, make sure the fish are not too small; otherwise larger fish may eat them. Therefore, do research to choose the fish of perfect size for your aquarium.
The fish you would keep in the tank must have to be compatible with one another. Instinctively, no biological species lives with heterogeneous species. Same applies to the fish in your aquarium. If the fish in the tank are compatible, they exhibit the maximum health.
Some species need special care to grow healthily. For example, some species need live foods, while some fish require spaces like holes among rocks, or decorative items to hide themselves. Some are prone to stress and various diseases. Some species are even susceptible to seasonal changes. You need to research all these before buying the fish so that they will grow and flourish well in the aquarium.
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