Don’t Overstock The Tank:Ĭardinal tetra fish are schooling fish, so try to maintain a minimum number of five cardinal tetras per gallon for an average-sized aquarium. Calculate the volume of your tank and change water accordingly. The recommended schedule is 20 percent every two weeks or 25 percent weekly established tank with a good population of beneficial bacteria. Like most fish, cardinal tetra care involves regular water changes. It will help in softening your aquarium’s water. If you do not have access to such substrates, add peat moss directly into the tank. For this, you can use a substrate that will soften your tap water. The mineral concentration in water should also be deficient. Hardness Of The Water:Ĭardinal tetras prefer slightly soft water with a GH (general hardness)of under 4 degrees. If it goes beyond 30 degrees, then there are chances that fish will die due to heatstroke or damage to their gills. In case the temperature is below 20, you need to add some heating equipment to your aquarium. Water temperature:Ĭardinal tetras prefer a temperature range from 24-28 degrees Celsius. These plants will help you keep the pH levels down if they get too high, which can happen when there are no plants in the tank.
It is best to replicate this water in the aquarium by using a substrate that will soften your tap water and have plants in your tank. The water that Cardinal tetras live in the wild is soft and slightly acidic, with a pH level of around 4.6 to 6.2. What Type Of Water Do Cardinal Tetras Prefer?įor proper care of Cardinal tetra, the water must meet specific requirements.
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