There are two responses to that question, the principal covers what you need when you originally set up an aquarium and the second covers what to so once the tank is set up. Regardless of whether it is another or set up tank what you are attempting to do is keep up the water quality at a level which is best for your fish so the main activity is comprehend such a conditions that your picked fish like. All fish will live most joyful between certain water boundaries and this fluctuates with each sort of fish. In another tank you should have the option to recognize when the nitrogen cycle has produced results, all in all when your tank has cycled and it is sheltered to begin adding fish. The organic channel is not yet settled so any fish squander or undigested food would basically prompt an Ammonia Spike. This is the principal phase of the Nitrogen Cycle and can be handily recognized with an Ammonia Test.
As microscopic organisms begin to raise you will see the Ammonia Spike supplanted by a nitrite spike as the Ammonia is changed over to nitrite by the primary arrangement of neighborly microbes, Nitrosamines. This is stage two of the Nitrogen Cycle and can be tested for with a nitrite test As the tank completes its cycle you will see the Nitrite spike supplanted by a Nitrate spike as the Nitrospira microorganisms begin to raise and benefit from the nitrites changing them over to less destructive Nitrates. This is the third and last phase of the Nitrogen Cycle which will appear through a Nitrate Test. The two Ammonia and Nitrite are unsafe to fish so it is just when nitrite levels have fallen back to their unique levels that it is sheltered to begin adding fish This cycling cycle can take half a month and you cannot tell which stage you are at without testing the water.
The fourth that you need is pH to test the acridity of the tank. At whatever point you are acquainting fish you need with ensure that there is not too enormous a distinction between the pH level in your tank and the pH level of the tank that they came from. In the event that there is, you have to adapt the fish cautiously to maintain a strategic distance from stun and stress. When your water testing tank has developed, the testing eases back down. You actually need to test your water consistently and make a note of the outcomes so you know about any progressions before they get the opportunity to transform into issues. Make it a piece of your daily schedule to test the water before you complete your normal water changes and unquestionably if your fish are acting in an unexpected way.