Koi -vs- Goldfish -vs- Minnows/Mosquitofish


When considering the best balancing of your pond, one should be aware of the mass (weight) of the fish involved and their symbiotic* relationship within ecosystem of your pond; the nitrogen cycle (refer to blog); more fish mass = more need for proper Biological filtration (refer to blog) and/or resulting plant growth. Remember that algae is a plant and thus if your fish load is heavy then there is more likely for your water-garden to experience a heavy algae “BOOM” growth -aka-“Going Green” (refer to blog).


For example, even a single large koi could off-set your pond balance and the result may be an unhealthy load on the pond, ….and a heavy algae growth as a result.

The Load effect based on weight of fish is as follows;

One adult mature Koi                     =        at least 60-70 goldfish  or                    =        more than 120 -140 minnows !! 


Another problem with Koi is that they can be voracious** eaters, eating up all the beneficial plants such as Anacharis ( refer to blog post on Anacharis). A large heathy growth of Anacharis and other aquatic plants would help to balance and keep your Pond looking clear and beautiful (Balanced).


*sym·bi·o·sis /ˌsimbīˈōsəs,ˌsimbēˈōsəs/ noun BIOLOGY; interaction between two different organisms living in close physical association, typically to the advantage of both.

**vo·ra·cious /vəˈrāSHəs/ adjective; wanting or devouring great quantities of food. “he had a voracious appetite”


How many Koi for your pond?

A simple question with a not-so-simple answer. This is because there are many factors to determine a good population for your koi*pond. Now, some rules of thumb are “floated” out there based on gallons of the water of the pond. The “answers” you will find for grown, developed koi will range from “basic rule…250 gallons per koi” up to “…1,000 gallon + per koi”. Please note: if you get small koi, they WILL grow to become a BIG KOI before you know it ! It is naïve to think that the gallon amount of water alone is all there is to creating a heathy environment for your koi to thrive in. There are a multitude of variables that will impact the needs in creating a heathy environment for your fish. A biological ecosystem – yes that is what you are creating- has a multitude of factors seen and even unseen. Good Filtration and circulation are essential to this equation. Furthermore, there are many other considerations that come into play, such as temperature, climate, depth of the pond, aeration, etc….

THE BEST ADVICE IS TO STOCK THE POND CONSERVATIVELY AND TO MAKE A WELL ADVISED DETERMINATION BASED ON YOUR INDIVIDUAL POND. Sadly, most novice koi keepers think too BIG in terms of their ponds ability to support and consequently learn the hard way that they have overstocked; ammonia spikes, fighting disease, overcrowding …sadly losing fish by death till they finally determine just how many koi their pond can support. Thus, our advice is “go slowly”, collect over time and avoid overwhelming your pond.


*Note; Other breeds of fish such as goldfish or minnows are much smaller and thus have much smaller impact per fish on the ecosystem and thus you can stock a vastly larger number of fish. We recommend smaller fish breeds for any shallow pond (under 24”deep) or under 2,500 gallons.


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.

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

Waging a losing war against mosquitoes

(CBS News) The Fourth of July is a day for parades and fireworks and picnics and outdoor activities of every kind. Just don’t forget to bring the mosquito repellant. Mosquitoes are the unwelcome guests at many an outdoor party, and not just because they’re annoying. Tracy Smith reports our Cover Story:

They’re as much a part of summer as watermelon and sunburns. Mosquitoes are found in every state, on every continent (except Antarctica). And for them, 2012 has already been a very good year.

“We had no winter in the Northeast this year, and so there’s a lot of predictions from mosquito control experts that we’re going to have a really huge season of high populations of mosquitoes, and so with that, more disease transmission,” said Leslie Vosshall, who runs Rockefeller University’s Laboratory of Neurogenetics and Behavior in New York City. Along with her staff, she’s trying to find out exactly how mosquitoes hunt humans.

“I love mosquitoes,” said Vosshall. “I have completely fallen in love with mosquitoes. They’re beautiful creatures. They have beautiful behaviors. But they’re dangerous.”

“Most people, if you said, ‘Mosquitoes are beautiful,’ would tell you you’re crazy,” said Smith.

“Exactly. I get that a lot,” she laughed.

She’s really not crazy – but her dedication to her work seems jaw-droppingly insane, especially around feeding time, when Vosshall sticks her arm into a mosquito cage: “These are hungry girls and some boys,” she said. Vosshall needs healthy mosquitoes for her work, and this, she says, helps keep them that way.

Only female mosquitoes bite, and only then because they need the blood to make eggs.

There are several ways to feed lab mosquitoes: this way, Vosshall says, is the best, despite what it does to her arm. “I feel good,” she said. “I’ve done my job.”

The telltale welts are the body’s reaction to the saliva mosquitoes inject to make your blood flow. Over time, her body has become accustomed to this routine. Still, there’s nothing routine about her work.

“What’s interesting is that the really dangerous disease-causing mosquitoes have acquired a taste for humans,” she said. “So Anopheles gambiae, which spread malaria, the principle vector of malaria, prefers humans over all other animals.”

Besides anopheles, some other mosquitoes high on the human misery list are the dengue fever carrier Aedes aegypti, that, in this country, is found mostly in the Southeast; and Culex pipiens, a carrier of West Nile virus, that can be found coast to coast. They, too, have a taste for us . . . and some of us are mosquito magnets.

Researcher Lindsay Bellani turns mosquitoes loose on a volunteer’s bare arms. “We measure how many are trying to bite the person after five minutes,” Bellani explained.

Scientists here are looking at what drives them wild – blood components, skin bacteria – so they can figure out a way to stymie the mosquitoes’ incredible ability to find us.

“They’re not working off of very much, but they do it so, so well,” said Bellani, “and in some way I’ve developed a weird kind of respect for mosquitoes.”

The CDC has respect for mosquitoes, too. The agency was created in 1946 to fight malaria, and while malaria’s been all but wiped out in the U.S., there were more than 700 reported cases of the deadly West Nile virus here last year alone.

So in places like Fairfax County, Va., they keep a close eye on mosquito traps.

“I have a lot more respect for West Nile virus today than I ever had before,” said Jorge Arias, who heads the program. He said he would’ve shown us the traps personally but it’s hard for him to walk; he was infected with West Nile himself two years ago, and is still partially paralyzed as a result.

But he’d be the first to tell you that there are worse things than West Nile out there.

Kimberly King never gave mosquitoes a second thought until her five-year-old daughter Adreana was bitten by a mosquito carrying the rare Eastern Equine Encephalitis, or EEE, somewhere near their home south of Boston.

“We could have been swimming, we could have been hiking in the woods, we could have been fishing,” said King. “We could have been sitting on the back porch. We could have been driving in the car.”

The girl went to her mother saying she didn’t feel well: “She seemed to have flu-like symptoms,” said King. “And then within 24 hours of her first symptom, she was seizing.”

After a week in intensive care it was clear that the little girl would not recover.

“We had to make the decision to take her off the life support,” said King. “And we took her off the life support, she was in my arms. I was holding her as she died.

“They took her off all of her machines and her hoses in my arms, and they allowed me to help wash her up before they sent her down to the morgue.”

Kimberly King buried her daughter on the day she would’ve started kindergarten. She’s become a full-time advocate for mosquito repellant and control, as a commissioner at the Plymouth County Mosquito Control Project.

But she says she doesn’t feel like the unlucky one in a million: “There were others before me, and unfortunately, there’ll be others after me,” she told Smith.

Still, death by mosquito is extremely rare in the U.S. In 2010 just over 100 people here died of mosquito-borne diseases. Those numbers would be higher, experts say, if not for aggressive mosquito control.

Shelley Redovan, executive director of Lee County Mosquito Control District, said her arsenal includes around a dozen aircraft that cover the 1,200-square-mile county, spraying for mosquito larvae that breed wherever there’s standing water – which, down here, can be pretty much anywhere.

And in Florida, where the bugs naturally thrive, it’s about more than public health.

“It used to be that tourists would come to Florida two months out of the year because that was the only time they didn’t have that many mosquitoes,” said Redovan. “But we have since been able to control them so we can have a tourist season 12 months out of the year.”

“Some people might ask, if you can’t reach it by ground, is it really a concern?” asked Smith. “Aren’t those mosquitoes out there in the wild somewhere?”

“Ideally it would be nice if mosquitoes stayed where they hatch off, but coastal mosquitoes in particular are very strong fliers,” said Redovan. “When they hatch there, they can easily fly 25 miles a day.”

So the agency covers a wide area. To those who worry about environmental impact, Redovan said the spray is formulated to be toxic only to mosquitoes, and its effect: only temporary.

After every high tide and rainfall, and after every spray run, an agent checks ponds and puddles to see how many mosquito larvae have started life anew.

But with swarms able to regenerate in a matter of weeks, and with an average of two new mosquito transmitted diseases found here every year, the threat of the next epidemic is never far over the horizon.

When asked if mosquitoes could ever be wiped out, Vosshall said, “We haven’t been successful so far, right? In the 1950s, we came up with insecticides that knocked the populations down a lot. But then the problem is, you’ll always have a few mosquitoes that developed resistance.”

“It’s an arms race,” said Vosshall. “We have to constantly come up with new insecticides to try to knock down the populations.”

“Who’s ahead? Asked Smith.

“Mosquitoes are ahead, unfortunately,” Vosshall replied. “Mosquitoes are winning.”


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Cultural Sense

The ancient Egyptians revered the Nile water-lilies, or lotuses as they were also called. The lotus motif is a frequent feature of temple column architecture.

The Egyptian Blue Water-lily, N. caerulea, opens its flowers in the morning and then sinks beneath the water at dusk, while the Egyptian White Water-lily, N. lotus, flowers at night and closes in the morning. This symbolizes the Egyptian separation of deities and is a motif associated with Egyptian beliefs concerning death and the afterlife. The recent discovery of psychedelic properties of the blue lotus may also have been known to the Egyptians and explain its ceremonial role. Remains of both flowers have been found in the burial tomb of Ramesses II.

A syrian terra-cotta plaque from the 14th-13th century B.C.E. shows the goddess Asherah holding two lotus blossoms. An ivory panel from the 9th-8th century B.C.E. shows the god Horus seated on a lotus blossom, flanked by two Cherubs.

The French painter Claude Monet is famous for his paintings of water lilies.