If growing big koi and goldfish is your goal, feed your scaled friends a high-protein diet, like The Pond Guy® Growth & Vibrance Fish Food
There are several factors that influence the precise protein requirements of koi and goldfish. Age is especially important. Young fish require a higher percentage of protein in their diet than older fish because the process of growth demands more amino acid absorption than does maintenance of the body.
The basic nutritional requirements of koi and goldfish are not terribly different from those of other fish or animals. Proteins are needed for growth, development and maintenance. Fats (especially the water-insoluble lipids) represent the major energy source in the diet. (In contrast, carbohydrates — an important energy source for humans — are relatively unimportant in fish nutrition.) Vitamins and minerals, often in trace amounts, are essential for metabolic performance.
Koi Pond Fish thrive with the right diet
Hikari Staple - Preferred Daily Diet For Koi & Other Pond Fishes
Pre-prepared koi food is readily available in pet stores or to , and usually comes in pellet form. These pellets provide a complete diet for koi, and will initially float on the surface of your pond so that you can observe your koi feeding, before sinking to the bottom of the pond where they can be picked up by scavenging fish.I see nothing wrong with supplementing your koi’s diet with fresh fruit and veggies. I’m not sure about the nutritional value of wild strawberries. I do know that vitamin C is an immune system booster, so anything high in vitamin C is good for fish. My koi eat the raspberries from my patch and seem to really enjoy them. Hello I have 3 ponds and lots of healthy koi in each. My smallest pond I have 10 goldfish. My medium pond I have 14 medium sized koi and my largest pond has 10 big koi. I try to give them a healthy balanced diet while making sure they mainly get the pellets. However I love giving them treats but I don’t give them acidic fruits like oranges because the acidity in the fruits can cause ulcers around their mouth. But I’m sure giving it to them once in a while isn’t bad I don’t suggest giving it to them every time you give them a snack.When feeding your koi and pond fish, a “lighter diet” doesn’t mean that your finned friends need to switch to low-cal, low-fat foods. Instead, it refers to an easy-to-digest wheat germ-based diet that’s formulated for the fishes’ slowed activity and metabolism during the transitional fall and spring months.