Purple Emperor Tetra ~ 3cm - 4cm

Price from £2.52

Quantity Price per Item
1+ Items£2.65
5+ Items£2.58
10+ Items£2.52
We currently have 160 available in stock.

The Purple Emperor Tetra are an attractive Tetra species; their brilliant blue/purple colouration makes them stand out in any aquarium.

When they arrive, their colours will always be bleached. They take time to settle before showing their full beautiful colouration.

Species – Purple Emperor Tetra – Inpaichthys kerri

Current Size – 3cm – 4cm

Adult Length – 4cm

Temperature Range – 22 - 27°C

pH Range – 6.0 – 7.5

Special Requirements - It is best to provide your Tetra with a mixed environment with some open swimming space and some plant cover. 

Tanks Mates and Compatibility – A peaceful species that will not compete well with more boisterous or much larger tank mates. Ideally, it should be kept with other South American species, which can include small tetras, pencil fish, hatchet fish, Apistogramma or other dwarf cichlids and peaceful bottom dwellers such as Corydoras and Otocinclus. It will also do well with smaller gouramis, rasboras and peaceful barbs.

Ideal Number to Keep – It has a bit of an undeserved reputation as a fin nipper. While it is certainly capable of this sort of behaviour, it only tends to exhibit it when kept in insufficient numbers. If a group of half a dozen or so is purchased, any aggression is usually restricted to conspecifics. Although it doesn’t shoal particularly tightly, it definitely fares best when maintained as a group, and rival males will show their best colours when displaying at one another.     

Feeding – No special requirements. It will accept most prepared foods, but should also be offered regular meals of small live and frozen stuff such as brine shrimp, Daphnia and similar. A varied diet will help to ensure the best colour and development.

We recommend:

Please note – Some images used are library photos and will show the colour potential at a fully mature size, as our fish are juveniles they may vary.

We always aim to supply the fish as close to the purchase size as possible. On rare occasions if this is not possible we will contact you.

The fish are selected at random however you are welcome to make a note on the order and the fish manager will do his best for you, requests are dependent on stock at the time of your order.





  • by Marianne M

    Beautiful healthy fish - variety of sizes arrived, but as they are settling in the larger ones are colouring up to a stunning iridescent purple. Very pleased.


  • by Phoebe

    Fish arrived on time, really well packaged and healthy. Have had them 3 weeks now and they are growing well. Their colours are amazing, Dark aubergine lateral line also pink and iridescent colours too. Fantastic watching them shoal together,


  • by Rebecca

    My tetras arrived today in emperor-essive style! Superb packaging, large bag and fish seemed calm and content.
    Fish are a good size and look healthy.
    The other reviewer is correct; the fish don’t appear purple but I am still very happy with them and the excellent service I’ve received. I will certainly use Tropco again.


  • by Emma

    I'm not sure if it makes a difference having a different light in your tank, but under a normal bulb these fish are NOT purple!


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