Easy
Neon Dwarf Rainbowfish (Melanotaenia praecox)
24–28°C · pH 6.5–7.5 · 80L
£5.99
Threadfin Rainbowfish is a delicate, peaceful shoaling rainbowfish for calm planted aquariums, fine foods and gentle flow. Covered by our Live Arrival Guarantee and sent by licensed live-animal courier service.
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.
Iriatherina werneri
Threadfin Rainbowfish are a shoaling species — they need 6+ to feel safe and show their full colour.
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Threadfin Rainbowfish is a delicate, peaceful shoaling rainbowfish for calm planted aquariums, fine foods and gentle flow. Covered by our Live Arrival Guarantee and sent by licensed live-animal courier service.
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.
24–28°C · pH 6.5–7.5 · 80L
24–28°C · pH 6.5–8 · 60L
24–28°C · pH 7–8.5 · 200L
24–28°C · pH 7–8.2 · 250L
Maintain these water conditions for optimal health and vibrant colors
Threadfin Rainbowfish (Iriatherina werneri) is a graceful planted-aquarium shoaling fish with long fin filaments and elegant male display behaviour. It is peaceful, but it does best in calm aquariums with gentle flow, fine foods and tank mates that will not nip fins or outcompete it.
| Listed identity | Iriatherina werneri |
|---|---|
| Adult size | About 4-5cm |
| Minimum aquarium | 80 litres or larger for a group |
| Water | 23-28°C, pH 5.5-7.2, soft to moderate hardness |
| Diet | Fine micro pellets, powdered foods, baby brine shrimp and small frozen foods |
| Temperament | Peaceful shoaling fish |
Keep at least eight, ideally more, with a calm planted layout and open midwater space. Their mouths are tiny, so foods must be fine. Avoid fin-nipping barbs, rough cichlids and boisterous fish that can stress the group.
Use as a first-time buyer. This live fish is packed for a licensed live-animal courier service and covered by the Tropical Fish Co Live Arrival Guarantee.
