A balanced diet for your aquarium fish is essential to thier survival. Most of the commercially available dry fish foods are almost always unbalanced. In many cases, the vitamin content will gradually decline at room temperature and since majority of the dry food for tropical fish commonly used will only keep for about three months, it is always advisable to buy fish-feeds in many small packs rather than in one large pack.
The feed could preferably be kept absolutely dry in a refrigerator. However, all fish appreciate a change of diet and will thank you for your consideration with more interesting behavior, better colours, and greater readiness to breed and better general well -being. This change of diet should be supplemented with live foods. This live food I fed my fish with is commonly known as Daphnia, and just readily available in nearby ponds, swamps or freshwater lakes.
Here in my place, I used to harvest daphnia in the nearby neighborhood. The owner used to breed fishes and have pets too. Inside his premises is a swamp where I catched all daphnia to feed my fish. In catching daphnia in swamps or ponds, you might also catch some guppy fishes along. Be very careful when feeding because these guppies might be mixed with your breeder guppies and will absolutely have bad results. Before feeding daphnia to your fishes, wash them first. The fishes in the tank will immediately come forward and bit off pieces of daphnia excitedly until satisfied.
Daphnia are rich in protein which the fishes need to lay eggs. If you are also planning of breeding your goldfish, make sure they are fed with sufficient live foods like daphnia but of course do not overfeed them. Overfeeding them is not a good idea. If you do not have daphnia in your place, alternative food will do.
Since all other information about fish foods are just right at our fingertip, I hope this principle I am sharing with you offers an additional idea in fish farming. The ways vary in different places, but not much the principle.
Please check my website for more available fish foods you might need for your lovely fishes.