It is not difficult to keep aquarium fish healthy and colourful. There are several basic requirements to follow to ensure the best care for your pet fish. You only need to spend a few minutes a day to keep your fish happy and give yourself the satisfaction of having a tank full of healthy fishes and beautiful plants.
Some misconceptions are also answered here.
All tips are from my own personal experiences and in no way do I claim that my solutions are the one and only way to solve your problems. Everyone, and even individual aquarium shops and fish farms will have their own solutions. Some solutions are ancient but still workable while others may be completely without any scientific basis whatsoever. Wherever possible, I try to give whatever scientific explanation so that you can understand better.