Freshwater fish are said to be the simplest fish to keep compared to saltwater species because they are generally hardier fish. A basic freshwateraquarium set up will is needed . You will need a fish tank, some rocks or shingle or sand to line bottom of the tank. You will also require a filter, and some light. When picking fish, it is most vital to ensure the fish are compatible . Not only do they need to be compatible for water temperature and P.H. , but they need to have eat the same types of food . It is best to keep the fish a similar average size. It has been said that if a fish is small enough to fit in anothers mouth, that is usually where it ends up. Sodon'tbedemoralizedif this happens.Even fish that have been kept together for several months have been known to disappearon occasion. It is a excellent practice when fish keeping to keep a diary of effents so you know  exactly that is going on in your fish tank. 

Freshwater fish should be fed twice daily. Feed only a small amount that can be consumed inside the first two to five minutes. Over feeding is a quite often made mistake by the beginner fish keepers. Any overabundance food should be lifted from the tank with a net if possible, as it will become debris and after not to long dirty the tank. Your freshwater aquarium water should be regularly checked and tested . Any discrepancies in P.H. and water temperature should be made goodas soon as possibe in order to minimize stress caused to the fish. Stress is very vital because it causes sickness in fish. It is imperative to keep a check on the activity and overall well being of the fish in an aquarium. The signs of stress will be honestly obvious. Slow moving or lethargic looking fish will require a stress coat that can be brought from an aquatic centeror on line . Try not to have to may fish in your tank. This should help to reduce the amount of stress caused to the fish.

A third of the water should be changed in the aquarium on a regular basis , because changing this level of water will make the least amount of disturbance to the fish and other inhabitants. This will need to be done every two to three weeks . Use either a bucket or a siphon to remove the water from the tank . Make sure you take out any loose or floating debris at this time. When replacing the new water to the aquarium, make sure that it is within approximately two degrees of the tank water. The sides of the aquarium should be cleaned thoroughly, on a regular basis to remove an algae build up. Again be careful not to disturb the fish. Wash your hands very well before and after handling the aquarium. Lastly , keep to the manufacturer's sanction on filters and change them as required . Filters collect any fish waste or left over food. They will not function as needed unless they are clean.

How to Keep Fish when setting up an aquarium introduce hardy fish to a new tank choose hardy fish for a new tank. These fish ideal for aquariums, they can with stand higher nitrite levels that are often present in a new aquarium. Choose freshwater aquarium fish such as danios, barbs, gouramis, and live bearers. Do not be tempted to introduce more than three to four small fish per week. Acclimation times vary per species , so check with your retailer before adding any other new fish to your freshwater tank .

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