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What Kind of Fish Food Should I Be Feeding My Koi? – Water Garden & Feature Q & A

A Family of Koi Posing for a Picture.

Water Gardens & Features Q & A

Q: What kind of food should I be feeding my pond fish? – Jamie of Florida

A: One of the greatest joys of keeping koi or goldfish in a decorative pond is mealtime. When it’s time for the fish’s daily dose of food, they’ll swim right to shore and seem to beg for those tasty morsels!

Of course you want to provide your finned friends with a diet that’s healthful, but choosing one can be a challenge. Food makers have formulated all sorts of blends for difference purposes. They’ve designed special fish foods for summer and spring/fall. Some are enriched with vitamins to enhance color. Some even come up with organic meals for fish owners who want to go eco-friendly with their ponds.

As omnivores, most pond fish, whether they’re koi, goldfish, comets or even mosquito-eating minnow, will eat both plant and protein matter. However, depending on the time of year, certain types of food are more easily digested than others. To help you decide which type of fish food to feed when, here’s a quick rundown of the different types available on the market today:

Wheat Germ-Based Foods: These wheat germ-based diets, such as Pond Logic Spring & Fall Fish Food, are packed with easy-to-digest plant matter and should be fed to fish during the fall and spring months when their metabolisms have slowed. As water temperatures cool, pond fish enter into a hibernation state and gradually stop eating for the
winter. Helping them ease them into and out of winter, these diets are gentle on their digestive systems while keeping their constitutions strong to fight off disease. Feed these spring and fall fish foods when the water temperature is between 40 and 55 degrees Fahrenheit.

Well-Balanced and Maintenance Foods: When water temperatures warm to 55 degrees or higher, you’ll want to change your fish’s diet to one that’s formulated for growth and maintenance. Some great well-balanced fish foods are Pond Logic Floating Ponstix if your feeling green you can choose Pond Logic Nature’s Blend Organic. These fish foods contain protein, minerals and vitamins to help the fish develop muscle as it becomes more active during the summer months. These foods are especially important if you have young or growing fish.

Color-Enhancing & Growth Foods: Color-enhancing foods bring out the color in your fish, making the reds more vibrant, the blacks deeper and the oranges richer. These unique protein and nutrient-filled diets can be fed throughout the summer months. Vitamins like Beta Glucan, Vitamin E and Ascorbic Acid, along with chelated minerals and natural color intensifiers, make your fish’s color pop in the pond. These foods also include extra protein. This extra protein will help allow koi to grow at a faster rate. For Color-enhancing and Growth fish foods use Pond Logic Growth & Color or for the best of the best use Pond Logic Professional Growth, Health, & Color.

Besides feeding your fish a healthful, balanced diet, you may wish to supplement it with some treats, like fresh watermelon or lettuce. Not only will your fish gobble them down, but you’ll also be developing a closer relationship with them, and ensure they’ll follow you around the pond at mealtime!

POND TALK: What do you feed your fish?

Ensuring Sufficient Pond Aeration – Pond & Lake Q & A

Picture of a Pond with an Airmax Aeration System.

Pond & Lake Q & A

Q: How do I ensure my lake or pond gets sufficient aeration? – Jack of Maine

A: Take a deep breath. Living things, whether they’re above water or below, require oxygen to thrive. If your pond or lake houses fish, then the aquatic environment needs to be rich with oxygen, and the best way to do that is by aerating the water. Pond aeration is simply diffusing life-giving oxygen into water evenly throughout the water column using surface aerators or bottom-mounted diffusers.

To determine whether your pond or lake requires aeration, take your pond’s temperature. Measure the temperature of the water 1 foot below the pond’s surface, and do the same at the bottom of the pond. If the results differ more than 3 degrees Fahrenheit, then your pond is not sufficiently aerated and it may need a little help. For a simpler test, JUMP IN! If you’re warm above the waste and freezing at your toes, it’s a good sign your pond is not being circulated or aerated enough. Here are the most common ways to churn up the water:

Bottom Bubblers: Bottom-mounted air diffusers, like the Airmax Aeration System, are ideal for ponds and lakes deeper than 6 feet. They aerate ponds from bottom up, pushing air into the water via air stones or diffusers. These systems generally feature a shore-side cabinet that houses an air compressor, which is connected to diffusers at the bottom of the pond. The air is forced through the diffusers, which create medium-size bubbles that expand as they surface, releasing oxygen into the water and circulating the water column. These bottom bubblers are by far the most efficient at circulation and aeration.

Surface Aerators: Surface aerators, like fountains, provide pond aeration from the surface down. They agitate the surface of the pond, pulling water up from below and releasing into the air, where the droplets explode into a decorative spray pattern. The surface area on each droplet of water is saturated with oxygen, which it delivers back into the pond. Fountains pull water from about 6 feet down. For ponds and lakes 6 feet deep or less, a fountain can act as both a pond aerator and a decorative feature. Depending on your pond’s size, you may need more than one fountain to properly aerate. When ponds are deeper than 6 feet, fountains become more for decoration and you need to think about a bottom bubbler.

Alternative Aeration – Wind Power: If power isn’t available near your lake or pond, you can go with a wind aeration system to keep the air flowing. Windmills are primarily designed for decoration and they  come with one air stones to aerate up to 1 acre. You’ll need constant  wind blowing at least 3 to 5 miles per hour for continuous aeration, but they are a great backup system to an electric air compressor or in a remote location. Windmills are available in 12-foot, 16-foot and 20-foot towers. Remember: Windmills do not provide continuous aeration and should not be used as a direct substitute for electrical powered continuous aeration systems.

Alternative Aeration – Solar Power: Solar powered aeration systems are another great alternative to aerating your pond without having to pay for electricity. Solar aeration systems are great for both remote
installation and environmental conscience applications. They are for aquatic environments ranging in size from small decorative water gardens up to ponds or lake up to 5 acres. These fully automatic systems are designed to run up to 20 hours per day under standard operating conditions. The battery backup system allows them to run like normal under less than optimal conditions. One of the biggest downfalls of solar powered aeration systems are their high price tag.

POND TALK: What do you do to aerate your pond?

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