WakeyKoi care library
Know your fish. Understand your pond.
Search husbandry, symptoms, parasites, infections and practical skills. Start with what you can see, or look up a name. Each entry links to its evidence and the next useful guide.
101 guides. Search also recognises common names and spellings.
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
New fish
Food & feeding
Sturgeon
Fancy goldfish
Seasonal care
Behaviour & health
Plants & pond environment
Viruses & biosecurity
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
Bacteria & water moulds
Symptoms & urgent help
Water & environmental problems
Practical fish-health skills
This library covers common and important conditions in koi, pond fish and fancy goldfish, with selected less common diagnoses. It is not an exhaustive veterinary textbook or a diagnostic service.