Don’t over crowd your pond! Proper pond size for your koi fish…

Koi fish need a lot of space, more than you would think! Before overcrowding your pond and therefore stuck with too many koi or unhealthy koi, you should keep in mind this important information.

Koi can grow to up to 8 inches in length in their first year! By the time the second year ends your koi could be 12-16 inches long! In a perfect world, with ideal living conditions such as water quality, temperature, aeration, nutrients and the size of the pond your koi could grow up to 36 inches and weigh over 45 pounds. Unfortunately, koi rarely get up to this size. An average koi will grow up to 21 inches in length. Larger fish (12-24 inches) of 1 to 3 fish can live in a pond of 1000 gallons.

Pond Size:

There are some “myths” out there that state your pond cannot be less than 3 feet deep. The truth is that there are thousands of two-foot deep ponds around the country, full of happy and healthy koi. The water in a two-foot deep pond will generally only freeze eight inches down, even in the coldest of climates, because of the insulating qualities of the earth that surrounds the pond.

Now there are other factors to consider when choosing a depth for your pond such as predators. If you live in an area where predators you will want to have a deeper pond – around 4 feet or more so that the fish can hide.

Raccoon generally won’t swim. That’s not to say they never swim, or couldn’t stand on the side of your pond and take a paw swipe or two at your fish. Fortunately, most fish will swim to a deeper, more protected part of the pond when a predator is threatening them. The one predator with legitimate credentials is the blue heron. Plenty of lily pads give them some protection and will work to minimize attracting a heron in the first place. Other protection measures include a cave-like structure that can be built in during the pond’s excavation, or if you already have a pond, they can be added with a little pond remodeling. Crevices, or miniature caves, can also be created within the rock walls of your pond.

Approximate Gallons of Water in YOUR POND:
Length x Width x 80% x Avg. Depth x 7.48 = total gallons
***the basin takes up approximately 80% of the actual SQ. FT.

We suggest getting a Pond Kit, these are specifically put together for the size of pond you wish to create and give you all of the materials you need to install it.

Koi can also live up to 200 years! This requires a lot of care and maintenance for optimum water quality to achieve this!

Oxygen and fish

They need OXYGEN and plenty of it! The more fish you have the more oxygen you will need to supply to your pond. Installing a waterfall is a great idea, this will give your fish a decent supply of oxygen as well as great circulation within your pond. If your pond does not have a waterfall there are many alternatives to this.

Pond aerators oxygenate your pond, helping all biological processes and creating a more stable environment, resulting in healthier fish and plants. Aeration is also very important during winter months in colder climates, as aeration helps to keep a small hole open in the surface of the pond to aid in degassing. The best one on the market right now is the Stone Pond Aerator from Aquascape.

Cold protection

Koi are very resilient animals, they do well in cold weather and can even withstand a partial pond freeze, so long as the pond does not freeze too deeply.

So if you live in a climate where the winters can be a bit chilly you can still enjoy a pond! To prevent your pond from freezing over you can use a 300 Watt pond Heater/De-icer and pair it with a Stone Pond Aerator and your fish will be safe and sound!

Proper filtration is a given!

Making sure your pond has proper filtration is extremely important. There are some “great deals” out there on filters for ponds, just make SURE you did all your research on the brand and that they have reputable reviews for their products. You only want to install this once, and you never want to be stuck with a system that is either not going to last or going to give you poor water quality. Believe or not, you can also over-filter a pond! Tight filter pads in your skimmer pick up the smallest particles of debris, causing you to be cleaning the filtering mechanism out constantly.

We have done extensive research and found that the Aquascape Filtration Kits take the lead in the industry! Take the guesswork out of selecting the correct pump and filtration combination for any new or existing pond. Buying a filtration kit is simple and provides the best overall value as components are selected by Aquascape not only for size of pond, but also matched components that will work well together as a team.

If you are confused about what size of filter you need and what pump and other products are compatible, we suggest getting a Pond Kit, these are specifically put together for the size of pond you wish to create and give you all of the materials you need to install it.

Pond Filter - Water Quality

Secret to maintaining a balanced eco-system!

YOU NEED TO BE ADDING BENEFICIAL BACTERIA TO YOUR POND! The best Beneficial Bacteria contains 8 pure strains of concentrated beneficial bacteria, including PSB bacteria and enzymes. This combination of natural cleaners helps to maintain a strong biological balance in your pond. Because ornamental water gardens are enclosed ecosystems, sometimes factors like fish load, uneaten fish food, organics such as leaves, sludge and unwanted debris may disrupt the balance. Aquascape Beneficial Bacteria maintains a strong biological balance; providing clean, clear and healthy water conditions. PSB (Photo Synthetic Bacteria) help quickly clear pond water by clumping fine debris and allowing it to settle.

Feeding your fish

Koi are dramatically effected by diet! Making sure they have proper nutrients is essential to their overall appearance and survival long term. Bottom line, if you want happy and healthy pond fish, you need to be feeding a high-quality fish food.

Again, we have done extensive research on this and highly recommend Aquascape Fish Food. All Aquascape fish foods contain probiotics that aid in digestion and reduction of fish waste, while the high-quality protein included helps to optimize growth rates. This large-sized floating pellet contains stabilized vitamin C and other quality ingredients and is scientifically formulated for all pond fish, including koi and goldfish. Their fish food will not break apart during feeding, helping to maintain clear water conditions.

An additional fish food product Aquascape carries is their Color Enhancing Fish Food Pellets which does enhance those gorgeous koi colors and patterns!

Thanks for reading! Stay tuned for more helpful pond blogs!


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Source: Some of the information above was gathered from Aquascape Inc.