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Pond essentials

Choose a pump at its working flow
Clean the filter without undoing its work
Cycling a pond filter
Depth, shelves and real water volume
How many fish can my pond hold?
Mechanical and biological filtration
Oxygen: the pond’s daily essential
What a UV clarifier does
Your first pond: start with the system

Water

A simple water-testing routine
Ammonia: what the reading means
GH and KH are different measurements
KH: understanding your pond’s buffer
Nitrate: manage the long-term trend
Nitrite: watch the filter’s second step
Tap water, chlorine and dechlorination
Water changes without a new water problem
Water temperature changes the plan
pH: look for stability and context

Koi & pond fish

Can these fish live together?
Choose a koi you’ll enjoy keeping
Colour changes, new marks and missing scales
Growth, size and realistic expectations
Tench and carp: plan for the fish beneath the surface

New fish

New fish arrival: prepare before opening the bag
Quarantine is a separate system, not a spare bucket
The first week with new fish

Food & feeding

A feeding routine built around your fish
Build a feeding record that helps you buy the right bag
Keep the food fresh after opening

Sturgeon

Feeding sturgeon in a mixed pond
Sturgeon need a pond planned for sturgeon
Sturgeon: weed, treatments and other avoidable hazards

Fancy goldfish

A comfortable home for fancy goldfish
A fancy goldfish struggling to stay upright
Buoyancy problems: beyond the “pea cure”
Fancy goldfish deserve their own plan
Feeding fancy goldfish without a scramble
Goldfish bumps, wen and normal anatomy

Seasonal care

A handover sheet for whoever looks after your pond
A pond power cut: have a plan before it happens
Going away? Make the pond easy to look after
Warm-weather pond care
Winter care starts before the first frost

Behaviour & health

A koi jumping out of the water
Bottom-sitting and clamped fins
Fish gasping or breathing rapidly
Flashing, rubbing or repeated flicking
Parasites, scrapes and diagnosis
Something looks wrong: start here
Wounds, ulcers or red areas

Plants & pond environment

Green water and blanket weed are different problems
Plants in a fish pond
Protect the fish without creating a new hazard

Viruses & biosecurity

Biosecurity: keep one problem out of other systems
CEV: carp oedema virus / koi sleepy disease
Carp pox: waxy lumps on koi
CyHV-2: goldfish herpesvirus
Fish origins, health status and certificates
KHV: koi herpesvirus
Reporting suspected serious fish disease
SVC: spring viraemia of carp

External parasites

Argulus: fish lice
Chilodonella
Costia: Ichthyobodo
Epistylis, Apiosoma and attached ciliates
Ergasilus: gill copepods
Fish leeches
Freshwater velvet: Piscinoodinium
Gill flukes: Dactylogyrus
Lernaea: anchorworm
Skin flukes: Gyrodactylus
Tetrahymena and lookalike ciliates
Trichodina: the rotating disc parasite
White spot: Ichthyophthirius multifiliis

Internal parasites

Black spot and encysted trematodes
Camallanus: red worms at the vent
Capillaria and other intestinal nematodes
Internal worms: what a thin fish can tell you
Microsporidia, myxozoans and internal cysts
Tapeworms and cestodes

Bacteria & water moulds

Bacterial infections: identify the cause
Columnaris: a bacterial lookalike for fungus
Fin rot, split fins and tail damage
Mycobacteriosis in fish
Saprolegnia: water mould on fish

Symptoms & urgent help

A fish that stops eating
Cloudy eyes and eye injuries
Dropsy and raised scales
Fish in distress: what to do first
Gill disease: breathing problems with many causes
Lumps, tumours and growths
Popeye: one or both eyes protruding

Water & environmental problems

Chlorine, sprays and chemical exposure
Gas bubble disease

Practical fish-health skills

Before using a pond treatment
Formalin: understand the product and risks
How a koi skin-mucus scrape is taken
Salt in ponds: purpose before dose
Scrape, culture, PCR: which test answers what?
Using a microscope for fish-health checks

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WakeyKoi Elite Mystery Box

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WakeyKoi Elite Mystery Box

WakeyKoi Elite Mystery Box

£159.99

Sale price £159.99 Regular price £234.98

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WakeyKoi Mystery Box

WakeyKoi Mystery Box

WakeyKoi Mystery Box

£74.99

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14–18cm Japanese Koi – Marudo, Maruhiro & Aoki

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WakeyKoi Elite Mystery Box

WakeyKoi Mystery Box