Visit a fish farm in fish breeding season and study types of ponds, varieties of fish in the ponds, feed ingredients, production capacity and common problems faced by the fish farm owners.

Surface fish - Surface fish are fish which search feed at the pond surface and not on the bottom. Therefore you see these fish species swim better, moreover they do not make a mess of your pond. However, they need additional protection against a threatening calamity like a hungry heron or cat.

Eye-catching fish - Fish in natural water often have a camouflage, which protects them against herons and different enemies. In a pond you should rather introduce fish with an eye-catching colour. After all you want to see your fish. Protection can be applied in many different ways.

Quickly propagating fish - A pond can accommodate just a limited number of fish, without it getting into trouble with the biological cycle. If there are too many or too large fish in a pond, the pond plants and the filter can no longer cope with the amount of waste materials and the pond will get turbid than. So, it is important to choose fish which do not grow too fast and which do not get hundreds of young ones per annum.

Ingredients used in fish feed commonly include; Marine ingredients such as fishmeal and fish oil from wild-caught fish and marine trimmings sources.,fishmeal, Fish oil, Land-animal protein and oil ingredients, Vegetable protein and oil ingredients, Vitamins and minerals and Astaxanthin.

The factors affecting the number and capacity of the fleet are magnitude of fish stocks, and fishing power of the vessels, profitability of each type of fleet and, in certain cases, the size of fishing gear.