What temperature does Koi diamond angelfish (Pterophyllum scalare koi diamond) need?

FishBase gives a range of 24–30 °C for this species.

What pH suits Koi diamond angelfish (Pterophyllum scalare koi diamond)?

FishBase gives a pH range of 6–8 and water hardness of 5–13 dGH.

Is Koi diamond angelfish (Pterophyllum scalare koi diamond) guaranteed to arrive alive?

Yes. Every live order is expert-packed and sent by tracked UK delivery under our live arrival guarantee.

Koi diamond angelfish (Pterophyllum scalare koi diamond) in a planted aquarium — representative image

Koi diamond angelfish (Pterophyllum scalare koi diamond) is a cichlid, supplied as live aquarium stock in the UK.

Care at a Glance

Scientific Name

Pterophyllum scalare

Max Adult Size

up to 10.5 cm

Temperature

24–30°C

pH Range

6–8

Hardness

5–13 dGH

Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Product-photo provenance and any image-specific limitations are stated on the listing.

Pterophyllum scalare

Koi diamond angelfish (Pterophyllum scalare koi diamond)

Name: Koi diamond angelfish (Pterophyllum scalare koi diamond)
Brand: Tropical Fish Co
SKU: N085
Availability: InStock

£8.99

Size: 4-5 cm

Live arrival guaranteed. Full refund or replacement if they don’t arrive healthy. Packed in oxygenated bags with insulation and heat packs when needed.

£19.95 tracked delivery — half price (£9.98) from £100.00, free from £200.00. One delivery charge however many fish you add — everything travels together with a licensed live-animal courier.

Read our reviews on Google or see verified buyer reviews and photos. Human support, careful packing and clear delivery updates for live aquatics.

Koi diamond angelfish (Pterophyllum scalare koi diamond) is a cichlid, supplied as live aquarium stock in the UK.

Care at a Glance

Scientific Name

Pterophyllum scalare

Max Adult Size

up to 10.5 cm

Temperature

24–30°C

pH Range

6–8

Hardness

5–13 dGH

Group of striped freshwater angelfish (Pterophyllum scalare) in a planted public aquarium

Full Care Guide

Freshwater Angelfish Care: Pterophyllum scalare

Freshwater angelfish are tall South American cichlids, not small community fish. OATA gives 120 litres as an industry floor for a compatible pair and says the aquarium must be sufficiently tall. We prefer planning around roughly 200 litres, a 100 × 40 cm footprint and about 50 cm height for an adult pair, with more space and an exit plan for a group.

15 min readRead guide

Water Parameters

Maintain these water conditions for optimal health and vibrant colors

Temperature

24–30°C

24°CIdeal30°C

pH Level

6–8

6Ideal8

Water Hardness

5–13 dGH

5 dGHIdeal13 dGH

Koi diamond angelfish (Pterophyllum scalare koi diamond) is a cichlid, supplied as live aquarium stock in the UK. Its native range is the Amazon Basin in Peru, Colombia, and Brazil. The maximum recorded length is 10.5 cm (FishBase).

Water and habitat

In the wild it is a freshwater benthopelagic species. FishBase gives a water temperature range of 24–30 °C, a pH range of 6–8 and hardness of 5–13 dGH. Plan the aquarium around the adult length of 10.5 cm, not the size supplied.

Diet

Published accounts describe the diet as tiny fish fry and younger, juvenile fishes, young and mature shrimps, crabs, prawns, various worms, mosquito larvae, and (Wikipedia). Offer a varied diet that matches this in the aquarium.

Species facts

Maximum length: 10.5 cm (FishBase)
Temperature: 24–30 °C (FishBase)
pH: 6–8 (FishBase)
Hardness: 5–13 dGH (FishBase)
Environment: Freshwater, benthopelagic
IUCN Red List: Least Concern

What you receive

Live Koi diamond angelfish (Pterophyllum scalare koi diamond) at the size shown on the size option. Every order is expert-packed and sent by tracked UK delivery with our live arrival guarantee.