Nutritional Requirements of Ornamental Fish

Feeding Live Food | Types of Live Food | Feed Storage | Concentrated (Dry) Feed | Fresh and Frozen Feed

Feed Storage

In rearing fish, we endeavour to provide our animals with optimal feed. Over time, however, these will deteriorate, especially if improperly stored. The storage time varies based on the type of feed being used and the environmental conditions under which it is stored. At best, store manufactured feed for a maximum of three (3) months. Opened packages should be discontinued after four (4) weeks due to feed’s tendency to rapidly becoming rancid; so purchase only what you need monthly to avoid wastage. The rapid rotation of feed will also minimise the likelihood of pest infestation which can radically reduce the quality and quantity of feeds.

Discard the feed if it shows evidence of spoilage, including moulds, discolouration, clumping and foul odours. Spoiled feed should not be fed to fish as they may produce aflatoxins, which can:

  • reduce growth rates
  • lower production efficiency
  • destroy the immune system, thereby causing disease
  • kill fish

Concentrated (Dry) Feed

The range of dry feed consists of extruded feeds, hard pellets, crumbles, and flakes. These should be stored in a cool, dry place. If storage is done in bins outside, the holding area should be elevated and moisture free. Ensure to seal the containers tightly at all times to reduce exposure to moisture.

Dry feed may be frozen – but not refrigerated - to extend the shelf life of the product.

Fresh and Frozen Feed

These should be refrigerated at all times. Avoid thawing and re-freezing. Thaw only what is needed and allow it to defrost to room temperature before feeding your fish. It is also recommended to wash frozen foods under running tap water to remove any dissolved nutrients that may pollute the water.