Koi Ponds, Goldfish & Garden Fish Pond Care

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Page Summary: Care for koi & goldfish, pond water quality control, as well as design, construction & care of garden fish ponds with special emphasis on koi ponds and koi keeping.  The site covers in detail, pond pump selection, liner ponds, pond water filter (biofiltration) systems including pond filter principles and practice. Koi breeding, koi feeding, koi health, koi care, koi pond maintenance and showing koi and transporting koi are all included in this series of completely new articles by Tony Roocroft (aka The Pond Professor).

The Koi, Fish Pond Website

This website consists of a wide range of koi and fish pond keeping articles completely updated for 2011.

The original articles on the site are all being replaced to make them shorter and easier to digest.

This will take a while so stay with us.

Where it makes sense the articles may include specific pond product recommendations from leading UK, South African or USA pond product suppliers.

For example see the Bradshaws Koi Food image opposite and below. These suppliers are world class.

The Pond Doctor in Context:

As much as we tend to see a doctor as being a curer of health problems it is a fact that top doctors of all disciplines are trained to be proactive.

It is in this sense that this website's name is Pond Doctor.

It does not pretend to be an expert in koi or goldfish vetinerary matters

Sponsored Products...

Koi Food BradshawsEvery koi keeper buys food. All koi foods are not the same. Bradshaws Koi Food (and winter Wheatgerm) is as good as the best for quality and fantastic value for money in modern sensible koi food packaging.

VirescoMake sure that you don't have blanketweed problems this summer. Viresco sold worldwide from UK manufacturer is THE natural string algae solution.

Hozelock Pond Vacuum Keep that pond bottom clean with reliable Pond Vacuum

Bradshaws Liner25 year flexible pond liner guarantee

Interpet Koi Pond Test KitTesting pond water can in itself become an intriguing and interesting hobby. Get a reliable test kit however.

Products & People & Recommendations

Over the years we have had the privilege of dealing with some of the world's most well know pond product suppliers. We are also exporters of specialised pond and water feature products. In addition to exporting water features, ponds and waterfalls we have also licensed a number of our fibreglass fish pond and water fall products to the UK's leading water features manufacturer. Our fish ponds, waterfalls, and self contained water fountains have been exported worldwide.

Tony Roocroft, the owner of this website, has had the privilege of forming close relationships with the UK's leading koi experts... Nigel Caddock and Peter Waddington. Peter J May has also been a firm friend for many years and along with both Peter and Nigel has been a guest of ours in South Africa. Peter and Nigel are world famous koi keeping experts and Peter J May is one of the UK's leading water gardeners and water gardening landscapers. These friends are publishers of world class koi keeping and water gardening books. They have been an important source of learning for me over the years since I first started selling water gardening products in 1992.

Plain, Simple Easy to Understand "Koi" Pond Keeping

In writing these articles I have taken into account all the important questions I have come up against since 1992. Strangely enough most of the queries revolve around a couple of aspects of koi and goldfish pond keeping... paying close attention to these aspects is in fact the "secret" to successful pond keeping. Whether the pond be a koi pond or a goldfish pond the fundamental principles behind the creation of a crystal, clear clean and impressive fish pond are the same.

I will often refer to a koi pond because in my country (South Africa) the vast majority of gardeners want a koi pond when in fact they mean a garden fish pond. The term koi pond in its true sense tends to mean a larger more sophisticated garden fish pond where the only inhabitants are in fact koi fish and large ones at that!

Koi ponds to the true koi enthusiast contain only three things in the words of my friend, Nigel Caddock... "water, oxygen and koi".

Our koi ponds on this site might also contain debris, koi, plants, frogs, goldfish, and other aquatic creatures or fish that take the fancy of pond keepers. Make your pond an extension of yourself... and enjoy the pleasures of water gardening.

On this site we don't pretend to be "Koi Crazy" despite the fact that you will see I refer to koi more often than not.

Make fish pond maintenance easy all year round ... Pond vacs, pond nets tools and protective clothing for cleaning your pond

Fish food and water treatments for pond and fish

Ready for Breeding Koi in Spring

In spring when loves comes around the koi will need somewhere to lay their eggs. In a natural environment eggs will adhere to submerged aquatic plants but in a koi pond there are not always plants because the koi tend to eat them.

You'll be amazed at how simple it can be to breed fish with the help of spawning brushes. Spawning BrushYou'll need one mature female and at least two males.

Put the brushes one above the other at the edge of the pond. Spawning usually occurs in the early morning after a night of flurried activity and can take several hours. Most of the eggs will stick to the brushes which can then be taken out of the pond and put in filtered water of the same temperature. If the eggs are not separated from the adult fish they may be eaten.

Latest Articles

Koi Fishfood and Goldfish Food for Pond Keepers. Fish, Facts & Fiction

Practical Seasonal Koi Pond Care: Koi, Goldfish Pond Keeping for Winter Spring

Overwintering Koi & Fish Ponds: Winter Pond Keeping & Freezing Pond Water

Care of Koi, Goldfish & Pond Fish in Cold Winter. Wheatgerm Koi Food

Koi goldfish pond covers over winter. How to look after pondfish

Sex of Koi. Male Koi & Female Koi Differences. Spawning Brushes for Egg Deposits

Frozen Koi Ponds & Fish Ponds. Ponds Freeze in Winter. Pond Care in Freezing Winter Weather

Koi Pond Heaters. Why Heat a Koi Pond? Koi Fishpond Heating. Is it Necessary?

Want to Heat Your Koi Pond? Fish Pond Heating in UK & Water Temperature Control

How Big do Koi Grow? How Fast do Koi Grow? Koi Growth Factor s and Bunkum

Water Leaks & the Leaking Koi Fish Pond: Help in Finding the Ponds Water Leak

Getting Koi Pond and Koi, or Goldfish Ponds Ready for the Spring

Interpet Koi Pond Test KitWhat the Does pH of Koi Pond Water Mean? Should I measure Pond pH

Pros & Cons of Heating Koi Pond Water for Optimum Koi Pond Conditions

Koi Pond Care: Garden Fish Ponds in Spring

Keeping Koi, Koi Ponds & GoldFish Pond Care. Fish Pond Solutions

Koi Survival. Dissolved Oxygen in your Koi Pond. Aeration & Air blowers

All About Koi Food & Koi Digestion. Koi Food Ingredients

Koi Pond Jewels. Colour of Koi. Japanese Koi names

You buy a house with a koi pond. A koi fish pond? What next?

Koi Ponds: Osmosis and Diffusion. Koi Metabolism Factors

Koi Breeding in Koi Ponds: Breed Koi & Goldfish but not for Money

Blanketweed or String Algae in Koi Ponds. Blanket Weed is Slimy, Floats on Pondwater

Pond Water Temperature Changes: Fish Pond Water Temperature in Autumn

Koi Ponds: How to Reduce Surface Foam on Pond Water Surface

Koi Ponds: Fish Pond Water Temperature Changes in Spring Time

Pond Building: rigid preformed plastic pond or fibreglass ponds

How does the KHV Koi Virus Disease affect my Fishpond and Koi Health?

Breeding Koi. To Make Profits from Breeding Koi is Almost Impossible

Koi Pond, Goldfish Ponds. pH and Water Quality Control

Pond Protein skimmers: Get Better Koi Pond Bio Filtration

Feeding Koi & Goldfish: Natural food of carp also for koi & pond fish

How to Achieve Crystal Clear Clean Koi Goldfish Pond Water

How to Breed Pond Fish: Breeding Koi & Goldfish for Fun & Pleasure

Fish Ponds in Spring: A Koi Fishpond & Gold Fish Come to Life

Fish Ponds in Spring: A Koi Fishpond & Gold Fish Come to Life

Fish Ponds in Spring: A Koi Fishpond & Gold Fish Come to Life

Ponds in Spring: Change for Koi, Goldfish & Pondkeeper Around Corner

Fish Ponds in Spring: A Koi Fishpond & Gold Fish Come to Life

Do Not Overstock Your Fish Pond with Koi or Goldfish

All About Keeping Pond Fish: Koi, Goldfish & Pond water Quality

Fish Ponds in Spring: A Koi Fishpond & Gold Fish Come to Life

How to Breed Pond Fish: Breeding Koi & Goldfish for Fun & Pleasure

Koi & Goldfish Fish Ponds. Do NOt Overstock Your Pond with Fish

Ponds in Spring: Change for Koi, Goldfish & Pondkeeper Around Corner

Do Not Overstock Your Fish Pond with Koi or Goldfish

All About Keeping Pond Fish: Koi, Goldfish & Pond water Quality

Fish Ponds in Spring: A Koi Fishpond & Gold Fish Come to Life

Creating a Perfect Pond: Use Pond Liner EPDM, Butyl, PVC

Koi Pond Restart: Getting a Koi Pond Ready for Spring Season

Pond water Changes: Avoid Changing Koi Pond Water if You Can

Move Koi or Goldfish from Pond to Pond. How to Move Pond Fish Safely

Green Water: pond algae in koi & goldfish ponds 

Balanced Koi & Fish Food for Healthy Ponds. Koi Nutrition

Koi Pond Clays Clarify Pond Water: Montmorillonite: How do They Work?

Koi & Goldfish Ponds: pH Buffers Use in a Pond: How do They Work

Koi Ponds, Fishponds & Newcomers to Fish Pond Keeping

Koi Ponds: Should koi and goldfish ponds be clear or muddy?

Clear Water Ponds: Koi Ponds: Green, Murky Ponds & Algae

Ponds and Fishkeeping in Spring. Koi & Goldfish and all Pond Life Awaken

Using UVC (ultra Violet Light) in Ponds: Koi Pond & Algae. Koi Ponds: Murky Water & Clear Ponds

Get Crystal Clear Koi& Goldfish Ponds: Murky Water & Clear Ponds

Koi Language Japanese terms to describe koi patterns and koi varieties

Koi and Goldfish: Moving Ponds & Fish. Transporting koi and Goldfish is not Easy

Koi Ponds Goldfish Ponds & Bloated Fish. Bloated Fish are Pregnant or Diseased

Koi Ponds, Goldfish Ponds & Pond Solids. Mechanical water filters for koi ponds

A pond pump is critical for most garden fish ponds.

Oxygen in Pond water: Fish & Bacteria Need Oxygen in Pond Water

Heart & Lungs of a Fish Pond. Koi, Goldfish & Pond Bacteria Need Oxygen

Koi versus Koi... Are Japanese Koi Better Than Other Koi?

Cloudy Fish Pond Water Caused by Algae Formation. Use UV to Solve Problem

Bradshaws Koi Food Pond Fish Food Water Treatments & Pond Fish Treatments

Bradshaws pond filters, pressurised filters, UVC combined filter kits

Bradshaws Polyex PVC Butyl Rubber Pond & Waterfall Liners Bradshaws UK Pond Supplies

Bradshaws Pond Maintenance Equipment Oase Pondovac Pond Nets

Bradshaws Pond Pumps Fountain Solar & Waterfall Pumps

Koi and Goldfish Fish Health Care Problems and Answers

Garden Pond Keeping Goldfish Problems. Gold fish breeding

Koi Keeping, Koi Pond Water Care, Kohaku, Showa & Koi Breeding

How To Care For New Garden Fish Pond Problems and Answers

Blanket Weed String Algae Problems and Pond Algae Control

Pond Food, Selecting Koi Pond Food and Koi Fish Feeding

Pond Keeping A to Z Goldfish, Koi Pond Problems and Answers

Pond Problems Overstock Emergencies Leaks Herons and Solutions

Practical Seasonal Koi Pond Care: Spring Winter Advice

Testing Koi Garden Fish Pond Water For Quality and Purity

Koi Pond Water Quality & Pond Biofilter & Oxygen Answers

Bradshaws Koi Food Pond Fish Food Water Treatments & Pond Fish Treatments

Bradshaws pond filters, pressurised filters, UVC combined filter kits

Bradshaws Polyex PVC Butyl Rubber Pond & Waterfall Liners Bradshaws UK Pond Supplies

Bradshaws Pond Maintenance Equipment Oase Pondovac Pond Nets

Bradshaws Pond Pumps Fountain Solar & Waterfall Pumps

Koi and Goldfish Fish Health Care Problems and Answers

Garden Pond Keeping Goldfish Problems. Gold fish breeding

Koi Keeping, Koi Pond Water Care, Kohaku, Showa & Koi Breeding

How To Care For New Garden Fish Pond Problems and Answers

Blanket Weed String Algae Problems and Pond Algae Control

Pond Food, Selecting Koi Pond Food and Koi Fish Feeding

Pond Keeping A to Z Goldfish, Koi Pond Problems and Answers

Pond Problems Overstock Emergencies Leaks Herons and Solutions

Practical Seasonal Koi Pond Care: Spring Winter Advice

Testing Koi Garden Fish Pond Water For Quality and Purity

Koi Pond Water Quality & Pond Biofilter & Oxygen Answers

List of recent pond and koi articles March 2006

Links to Expert Koi and Goldfish Pond Articles

Oxygen pond care algae koi health goldfish

Pond Aeration and Oxygen in Ponds

Algae Control Clear Pondwater Prevent Murky Koi and Goldfish

Best Koi Pond and Goldfish Articles On Web

Algae Control Koi and Goldfish Ponds and Clear and Murky Ponds

How To Choose Koi Pond Equipment and How It Works in The Pond

Pond Filters and Biofiltration

Koi Food and Feeding Koi For Results All Year Round

Goldfish Care In Garden Fish Ponds

Koi Pond Health Koi Care Medication and Treatments

Koi Varieties Breeding and Japanese Origins

Fish Pond Care Autumn Winter Summer Spring Koi Seasons

Pond Stocking Fish Moving and Pond Fish Handling

What is Koi farming and how can you make a living from koi fish...

List of recent pond and koi articles March 2006

Links to Expert Koi and Goldfish Pond Articles

Oxygen pond care algae koi health goldfish

Pond Aeration and Oxygen in Ponds

Algae Control Clear Pondwater Prevent Murky Koi and Goldfish

Best Koi Pond and Goldfish Articles On Web

Algae Control Koi and Goldfish Ponds and Clear and Murky Ponds

How To Choose Koi Pond Equipment and How It Works in The Pond

Pond Filters and Biofiltration

Koi Food and Feeding Koi For Results All Year Round

Goldfish Care In Garden Fish Ponds

Koi Pond Health Koi Care Medication and Treatments

Koi Varieties Breeding and Japanese Origins

Fish Pond Care Autumn Winter Summer Spring Koi Seasons

Pond Stocking Fish Moving and Pond Fish Handling

What is Koi farming and how can you make a living from koi fish...

Koi & Goldfish Garden Ponds: Is Your Fishpond Water Milky?

Types of Metallic Koi in Koi Ponds: Metallic Sheen on a Koi Fish Scales

Koi Ponds: Koi Medication: Treating Koi & Goldfish Health Problems

Koi Skin, Colors, Texture, Scales, and Koi Fish Appearance