Lakukan penyaringan dan sirkulasi air akuarium. Pertahankan suhu air yang tepat untuk ikan. Buatlah lingkungan akuarium yang menyenangkan untuk ikan. Lakukan penggantian air sebanyak 10-15%.

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To keep your fish healthy in his environment, you need to keep the tank water clean and toxin free. Fish can release more waste than plants or bacteria can process, and this waste can lead to toxic or harmful chemical build up in the tank if it is not filtered or removed.  If your fish lives in a bowl, you will need to treat the tap water you use in the bowl so it is safe for your fish to live in. Treat tap water with water conditioner and a pinch of aquarium salt  before you put it in the fishbowl. The salt will help to kill bacteria in the water and keep the water clean for your fish. Do not use iodized salt, as this can harm your fish. If your fish lives in an aquarium, you will need to install a filtration system in the aquarium to maintain clean water for your fish. Before you get any fish for your aquarium, you should dechlorinate the tank water and install a filtration system. You will need to allow the tank time to cycle through the water several times, and only introduce a few fish at a time in the environment so the filtration system is not overloaded with waste to process. This will help you avoid “new tank syndrome”, which can kill your fish. If your fish is kept in water that is too warm or too cold, this could lead to high levels of stress in your fish and repress his immune system. This could then leave your fish susceptible to infection and disease. The required water temperature will depend on the fish type. If you have a tropical fish, your water temperature should be around 75 °F (24 °C). Tropical fish are able to tolerate water temperature fluctuations, to an extent. A goldfish, on the other hand, can tolerate water temperatures between 68 and 72 degrees Fahrenheit. The key is to avoid rapid dramatic changes in water temperature and to maintain a water temperature that is comfortable for your fish.  Different species of tropical fish can require different temperatures so always check to make sure you are providing the correct environment. When you buy your fish, the retailer should...