Category Archives: General

Mare’s Tail (Hippuris Vulgaris) Is Excellent Oxygenating Pond Plant

Use Mare’s Tail (Hippuris vulgaris), an Excellent Oxygenating Pond Plant. Mare’s Tail (not to be confused with “horsetail”, a  pernicious garden weed) usually grows below the surface of a pond and absorbs some chemicals from the water, helping to keep it clear and earning it the distinction of being one of the best oxygenating plants suitable for ponds. Oxygenating plants play an important role in maintaining a pond’s health; as ...


Is There Such A Things As “Overfeeding” The Fishes?

Is There Such a Things As “Overfeeding” the Fishes? Would I Kill the Fishes If I “Overfeed” Them? This is a typical “beginning” pond owner’s question. A few people realize that fishes (and other animals) know no satiety when eating. There has never been a reported case of a fish dying from too much food, or even of one dying from lack of it, either (precisely because, in the absence of your “fish food”, fishes can always fea ...


Rinse New Plants Before Putting To Pond

Rinse “New” Plants First Before “Introducing” Them to Your Pond.  This is a common “rookie mistake” among new pond owners. Newly-purchased (or newly-obtained) aquatic plants should first be rinsed thoroughly. This precautionary measure helps circumvent the presence of any parasites or the growth of duckweed in your pond. “New” water plants can also be disinfected with some salts or Potassium Permanganate, to be added to a ...

Feeding Fish With A High-Protein Diet

Feeding ‘em a High-Protein Diet. Speaking of “overfeeding”, if you really have sort of a “penchant” for doing it, then feed them high-protein fish foods, preferably the easily-digestible kind (you may ask your specialty stores which ones are they), and with a 30 to 35% protein “level”.  Proteins in the fish’s diet ensure less waste and provide a lot of energy to the fish. The indigestible kind of protein is the one that is “ ...

Use Hard Water In Your Pond If You Want To Accentuate The “Sumi”

Use Hard (or “Harder”) Water in Your Pond if You Want to Accentuate the Black Portion (“Sumi”) of  Your Koi. Though there are some exceptions to this observation, this “tip” is not new among long-time Koi owners; water with high hardness has been observed to be very conducive to the “sumi” (or black portions) of your Koi. If there are only a few black spots in your Koi (or if there aren’t any), there try using hard water i ...

“Move” Newly-caught Koi With Soknet

The Japanese are so ingenious, they “invented” two kinds of net: one for “catching” Koi (the landing net), and another for “moving” the newly-caught Koi. This net for moving is affectionately called theSoknet, which translates in English to “sock net”. These Soknets feature a narrow but long sock-like mesh with just enough room to hold one or at most two Koi vertically. This way, the newly-caught Koi can be transferred from the ...

It Is Still Best To Remove Any Snow Buildup On Your Pond?

If you happen to reside in a place where it really snows, then perhaps you are no stranger to snow-covered ponds anymore. But instead of just “opening” a hole on your snow-covered pond, it is still best to try to remove the snow buildup, especially if there is still sufficient sunlight. This is so because sunlight is crucial for the general “health” and well-being of your pond’s fragile ecosystem: sunlight prevents mildew buildup, it ...

You Should Gather As Much “How-To” And “What-If” Information As You Can

Before You Actually “Start” Building and Furnishing/Populating Your First Pond… You should gather as much “how-to” and “what-if” information as you can and listen to the experiences of other pond owners and also of pond builders. Arrange visits to other ponds, especially those “sites” with multiple ponds of different sizes. If possible, ask (and maybe even pay) for a person from those sites to give you a tour of their facilitie ...

Ammonia Plays An Important Role In Your Pond

Despite its earning a “bad rap” as being toxic to fish, amphibians and invertebrates, Ammonia, both in its “free” state (NH3) and as the compound Ammonium (NH4+), still plays a key role in your pond, because it acts as a “food source” for the nitrifying bacteria in the Nitrogen Cycle, a very important (especially for plants) biological process. Nevertheless, you should still find a way to “monitor” or “control” the levels o ...

“Set Aside” Newly-Purchased (or Newly-Obtained) Fish

Whenever you bring newly-purchased (or newly-obtained) fish for your pond(s), follow the procedure of allowing them to “acclimatize” to your pond’s temperature BUT do not introduce them to the pond where you keep your “old” (or “current”) “stock” of fishes. Place them in a “quarantine” or “isolation” pond instead, and keep them there for a few weeks, so that any “hidden” diseases will manifest themselves. Make sure ...

Which Young “Kohaku” To Buy? 

If you ever find yourself wanting to buy (or given the opportunity to buy) a young Kohaku (a Koi variety that has a white — or “shiro” — body with red — or “aka” — markings, or “hi”, across its body), the “best buys” are the ones with the most red markings on their backs, because as they grow “older”, the reddish growth will eventually “break open” and shrink. ...

Turn Off UV Lamps When Doing Any Jobs On Filters

When Doing Some Maintenance Jobs on Filters, Turn Off Any UV Lamps. Often, doing some maintenance jobs on pond filters necessitate some (or all) of the pond’s water to be replaced or “treated”, so it is not necessary to leave any UV lamp turned on. In fact, in most cases, leaving them turned on will only have an adverse effect on the newly-treated water or on the filters themselves. This way, you are also “extending” your UV lamp’s ...

Ripe Fruit Or Onion Smell Coming From Your Pond

Do you notice/perceive a smell of ripe fruit or onions coming from your pond? This is one indication of a “missing link” in the breakdown of common amino acids in your pond’s water. Perhaps when you smell/perceive these indicators, it might be time to consider using a pond skimmer and/or biological filters, particularly those using Zeolite. But of course, before doing so, consult some pond dealers and/or specialty shops and exercise “due ...

Determining Your Pond Water’s Carbon Dioxide (CO2)

Determining Your Pond Water’s Carbon Dioxide (CO2) Contents Based on its Carbonate Hardness (KH) and Degree of Acidity (pH). If there are plenty of plants in your pond, you might want to monitor your pond water’s Carbon Dioxide (CO2) content, because plants need CO2. But CO2 might also be of interest to you because it is intimately related to your pond water’s carbonate hardness (KH) and degree of acidity (pH); dissolved carbonates ...

When Building A Pond, Do Not Expose The Pond Liner To Direct Sunlight

When Building a Pond (or After it Has Been Built), do Not Expose the Pond Liner to Direct Sunlight. Sunlight, specifically its invisible ultraviolet rays, are harmful to your pond’s liner (also called “foil” by some pond owners and constructors), so part of ensuring that you have a good pond edge is by concealing the liner. As a precaution against sunlight (or UV) damage, keep the water level high at all times, especially during the summ ...

The Best Landing Nets Are The Ones That Come From Japan

There’s a saying among pond owners that goes like, “If you want to catch a Japanese Koi fish, always use a Japanese landing net”, and there’s no doubting this saying because the Japanese have been in the Koi-rearing “business” (well, it’s not really a business for some of them; it’s a lifelong passion!) for ages, and they know what there is to know about Koi. Consequently, they have “designed” all their ponds, pumps, filters, ...

The Best Time To Construct A Pond is In The Autumn

We have stated earlier that it is best to purchase aquatic plants in the Summer or Autumn. It is also best to schedule any pond construction jobs in the Autumn, not just because aquatic plants in pond stores are at their “best” quality in the Autumn, but also because algae do not tend to grow much during this time of the year. ...