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Stop Wasting Money On Dechlorination Solution – Koi Pond

Everyone knows that keeps any kind of fish, be it marine, freshwater, tropical, pond, or otherwise, know that chlorine in our tap water is a killer. Most in the hobby will spend inordinate sums of money of overly priced dechlorination solution, and nearly all the time, dose it incorrectly. 

First of the good news. After reading this article you will save a fortune in dechlorination solution as well as learn how to dose your pond correctly. As well as, finding a permanent solution that will remove the need for a solution all together.

What Is Dechlorination Solution?

Quite simply, it is Sodium Triosulphate. Which is a safe, easy to use, impossible to overdose chemical, cheap and widely used.  Crystallised Sodium Thiosulphate is very cheap, a kilo will probably cost you as much as a tiny bottle of normal dechlorination solution, but the kilo of Sodium Thiosulphate will last you 100 times longer if not more. Have you ever thought why they don’t put the ingredients on the label of these solutions? Simply because this is the only ingredient. There are many guides on how to use this chemical check out this one: How to Make Your Own Dechlorination Solution

You Are Dosing Wrong!

Many pond keepers are dosing dechlorination solution incorrectly. Mistakingly dosing for the water they are replacing, which is wrong. You should always dose for the entire volume of your pond, no matter how little water you are topping off with. Which makes the above method, even more of a reason to ditch the shop-bought varieties and make your own.

Need A Large Volume & Quicker Solution?

The above method works great and it’s always important to have that in your arsenal. Yet, there is another, more mechanical method, that simply means connecting a large chlorine filter and flow meter to your pond, when you want to make large water changes. For large water changes, I would recommend one of these: High Capacity Chlorine Filter and attach a flow meter to the end of it: Flow Meter – the above is exactly what I do and use and will save you money.


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Raised Wooden Koi Pond – Filtration


When you’re building a pond, sooner rather than later, thoughts turn to pond filtration. In addition to the volume of your raised wooden Koi pond, you need to think of filtration. Without filtration, your raised Koi pond and the Koi fish, will simply suffer and eventually die. It is quite alarming how many fish ponds are built, without any filtration. A Wildlife pond may be fine with wild pond plants and attracting wildlife, but having no fish stock. However, a fish pond and especially a Koi pond needs a lot of high-quality filtration.

My feelings on filtration, whether this be for a fish tank and I’ve had many cold water, tropical and marine fish tanks over the years – usually getting larger and larger. I’ve also had quite a few ponds over the years, which again have got larger and larger. Currently, I have a Stretched Octagonal Raised Wooden Koi Pond in my own back garden. In fact, the video you see on the home page of this website and on the YouTube Channel is that very same raised wooden Koi pond. The Mirror Carp that you see in that video was from a much smaller pond. Now, the pond also has some Koi Carp too – videos of which I will be doing soon. I digress. My thoughts and feelings on filtration is to always, always over-spec your filter equipment. By that I mean, if your pond is say 1000 gallons, have a filter system that is stated as working with over twice that. at least. The reason being is that many filters are quoted as working on very low stock ponds. It’s fair to say, that fish keeping, whether that be cold, tropical, marine or fancy or Koi, ultimately we tend to buy more than we planned. Obviously don’t go crazy, but it is quite common to see ponds overstocked. Which can be a real problem, if the filtration can’t handle the amount of fish. 

Quick things to consider when setting up a fish pond and especially a Koi pond:

  • Filtration at least x 2 the recommended volume.
  • Bead Filters and Bakki Showers (I will write more about these) are a worthwhile investment in a Koi pond.
  • Install a UV filter to stop your pond water turning green.
  • High volume air pump and large air stones (aeration is hugely important)
  • Buy a quality water testing kit.
  • Understand the Nitrogen Cycle (I will write more about this too), which your pond will go through.
  • Use a chlorine inline filter when adding water to your pond, this will save you a fortune on chlorine removal products.
  • Keep stock very, very low at the start, certainly for the first 3 months. To allow your pond to cycle and build beneficial bacteria. Consider adding products that contain beneficial bacteria to boost that start up cycle.
  • Water changes once a week; 25% of the water volume.

I will be writing more about each of these points over the next few weeks. So keep posted and if you have any questions related to Koi or Fish ponds. Please contact us via chat (bottom right button of the screen) or simply use the contact page