This biological, up-flow filter was developed years ago using stratospheres of grated rounded stone and silica to create the best biological filter you can find for your pond. The ease of cleaning using a volume of air to forward-wash is superior to any backwash procedures we have ever come across, and this is the key to any successful filtration system. These filters have stood the test of time, first installed in the 1960s, some of which are still running and in service! They are a custom made system that does NOT EVER need to have the media changed or removed for service and maintenance!

Heres to you having a healthy, balanced, crystal clear pond with your Z-Bio-Filter!

Anacharis Bunch How To

Anacharis is a very helpful plant that helps balance the water in a pond. The video attached is our method of bunching Anacharis to get it ready for sale and for planting.




The Pond Company: Bear Cub in Pond on Camera

This bear cub was caught on camera at The Pond Company client’s pond. Helping with trimming the water lilies.

Koi Fish Rescue From Wolsey Fire Malibu

Fish thriving well from our save back in November during the Wolsey Fire in Malibu. The Pond Company saved fish from the burned home of Jillian Michaels. Since the rescue they have been doing well and been alive and thriving. During our emergency trek adventure into the burn zone!

Check Out Our Video!

Animal Rescue: This video is about Koi Rescue in the Woolsey fire by Jon & Ben Rasmussen of the Pond Company. Heading into the burn zone of the Woolsey Fire to save koi fish from a pond on 11/12/18.

Nitrogen Cycle


The Nitrogen Cycle occurs naturally and invisibly on a microscopic level within a pond or water garden. It is a vital, natural process in all healthy, organic, aquatic ecosystems so it is good to know and understand this process and how it works.

First, the fish waste and uneaten food becomes Ammonia. Ammonia (NH3) can be an industrially produced chemical, and it also is created and exists naturally in the environment. Ammonia is essential for many biological processes and serves as a precursor for amino acid and nucleotide synthesis; the nitrogen cycle. In the environment, ammonia is part of the nitrogen cycle and is produced in the water from bacterial processes. Ammonia naturally occurs from decomposition of organic matter, including plants, animals and animal wastes. Basically, when the fish feed, their waste (along with uneaten food) becomes ammonia. The ammonia molecule is then turned into the nitrite molecule.

Nitrite is a waste produced by bacteria in the biological filter as it breaks down ammonia. Nitrite is extremely harmful to fish if left in quantities unconverted. Tested levels of 0.25 ppm or higher are dangerous to your fish and if levels are allowed to rise up to 0.5 ppm, it can result in severe fish loss..

Biological filtration provides the environment for this nitrogen cycle to take place naturally. In this cycle naturally occurring bacteria (nitrifying bacteria or aerobic bacteria) break down the ammonia into the nitrites, and then is converted further; produces the byproduct called Nitrates.

Nitrate is the byproduct of nitrifying bacteria in the biological filter breaking down ammonia and nitrite; Nitrate can be taken in by aquatic plants and algae as a nutrient for growth. High levels can lead to excessive algae growth. Levels should be kept below 40 ppm and should be tested weekly.

Thus, when the fish eat, their waste/the ammonia is converted by aerobic bacteria (the good bacteria) into the nitrites, and is further converted into nitrates. Nitrates then in this cycle become “food” for the plants to grow on (fertilizer) and then in turn, the fish eat the plant material as a food source, produce ammonia …..thus creating an on-going natural process called, completing the Nitrogen Cycle.

The Pond Company Promo Video

The Pond Company has been working hard to keep Echo Park looking Clean and Beautiful through our dedicated oversight and optimization over this past year of 2017.

Check out our newest video showcasing some of the work we have been doing at Echo Park:


Naturally Flowing Pasadena Stream

Recent work on a naturally flowing stream that runs through the hills above the Arroyo in Pasadena. We did a re-positioning of the rocks and boulders within to create an appealing landscape for the water to flow over and through. For the rain, we adjusted boulders and placed stones in an aesthetically pleasing way.

IMG_20170117_142409 IMG_20170202_125931

The Amphibious Bullfrogs at Echo Park Lake

Bull FrogIf you listen close enough the next time you’re enjoying a nice day at Echo Park Lake, you’ll be able to hear some croaking sounds coming from the lake or see a rustle in the water lilies, and now you’ll know that its the Bullfrogs making their presence known from within the wetlands!

We have been noticing more and more that the Bullfrogs have been doing well and living healthy in the environment of Echo Park Lake. The Pond Company has been working hard and diligently to ensure that the waters are clean of trash and other debris so that the wildlife can live a healthy lifestyle out in Echo Park. We hope that our efforts can bring more wildlife to Echo Park, and also more humans to come by and enjoy a day at the park as well!

Echo Park Lake 2015

Lotus later daysHave you been to Echo Park Lake recently?

The Lotus Bed and all other wetlands of the lake have been looking full and healthy throughout the Summer of 2015 thanks to the help of The Pond Company Inc.

The Pond Company Crew has been going to the lake and maintaining and taking care of the lake, keeping it clean and looking fresh on a weekly basis.

Lotus Bed was kept looking full and healthy throughout the summer and leading up the lotus festival, as you can see in the picture.

If you haven’t had a chance to come and visit the beautiful Echo Park yet, come stop by and check it out! We have been happy to hear all of the positive feedback from the public that visit the park!

MinnFinn Treatment for your Pond

MinnFinn ProductsWhen you notice that any of your fish in your pond are experiencing stress, external damage to the their skin or scales, or behaving in a strange manor such as “flashing”, etc. it is possible that your pond could have a disease. We highly recommend using MinnFinn to treat all common external fish diseases. MinnFinn is one of the best medicated treatments on the market because it is simple to use (when done correctly) and has a broad range of disease treatments for your fish.

“MinnFinn is good to treat a number of organisms found on the outside of your fish. MinnFinn eliminates PROTOZOA parasites, FLUKES and many external BACTERIAL infections. MinnFinn has effectively eliminated protozoa infections, fluke infections, red sores on fish and bacterial gill infections.” – AquaFinn

Though the treatment is straightforward, we recommend that you have a professional do the treatment, because it should be done accurately and the fish should be observed to make sure the fish do not suffer from any adverse reactions. The nice thing about this product is that it is completely neutralized and safe at the completion of its application.

“All these chemicals are naturally-occurring ingredients that are safe for fish, humans, and the environment, unlike other treatment options using organophosphates (known toxins to animals), or Malachite Green and Formalin (both known carcinogens)” -AquaFinn

Some Facts to know about MinnFinn:
-Environmentally safe, nontoxic medication for parasitic, bacterial, or fungal diseases

-Simple two-part treatment, completely safe once neutralized

-Does not discolor water

-Safe for biological filters

-Application of treatment requires no water changes

We have a line of MinnFinn Products that include, MinnFinn Regular, MinnFinn Max, MinnFinn Mini.