Cyprinidaefreshwater fishBeginner

Ghost Koi Medium

Cyprinus carpio × Cyprinus carpio var. (hybrid)

Origin: Captive bred

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Water Parameters

Temperature426 °C
15 °C35 °C
pH6.58.5
49
GH (Hardness)520 °dGH
0 °dGH30 °dGH
KH (Alkalinity)315 °dKH
0 °dKH20 °dKH

Quick Stats

Max Size
70 cm
Min Tank
1000 L
Lifespan
15-25
Swimming Level
All
Schooling
Yes (3–20+)
Diet
Omnivore
Temperament
Peaceful; compatible with all standard pond species

About

Ghost Koi are a hybrid between wild carp and metallic Ogon koi, resulting in fast-growing fish with a haunting metallic sheen over dark, scale-patterned bodies. They are exceptionally hardy, disease-resistant, and popular with beginner pond keepers across Northern Europe. Medium-grade fish show the characteristic ghostly metallic face and dark lateral body well, making a striking pond display even at this intermediate size.

Care Guide

Keep in well-filtered ponds of at least 1,000 L. Fully cold-hardy; tolerates temperatures from 4°C in winter to 26°C in summer. Feed quality koi pellets seasonally; withhold food when water temperature drops below 5°C. Provide sufficient depth (minimum 80 cm) to allow safe overwintering. Compatible with other koi, orfe, and pond fish.

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