Giant Betta Siamese Fighting Fish ~ 4cm - 5cm


The Siamese Fighting fish is a complicated fish and should not be purchased on a whim. The name suggests that they are an aggressive species, but this is certainly not always the case.

Siamese fighters are hardy, full of character, and are peaceful to most other fish. They do not seem to enjoy open spaces, preferring densely planted areas of the tank. An ideal environment would be a small aquarium with a lot of plants and a few peaceful tank mates.       

Please let us know your colour preference and we will do out best to oblige.

Species – Giant Siamese Fighting Fish - Betta Splendens

Current Size – 3cm- 4cm

Adult Length – 12cm

Temperature Range – 24 - 28°C

pH Range – 6.0 – 8.0

Special Requirements - They are relatively easy to keep and are very hardy once settled, providing that they are not being bullied.

Tanks Mates and Compatibility – If you stock 2 male fighters together then all hell will break loose and you will end up with one battered fighter and the other one will probably be dead. They can also be aggressive to other long finned tank mates. However, usually, if housed with standard community fish, they pose no threat at all. In fact, they can be prone to having their beautiful fins nipped and this is often more of a problem. They can also be prone to stress if they are perpetually being nipped.

Feeding – They are not fussy eaters, accepting flakes and pellets along with live and frozen food.

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 J T

    I received my boy Koko a couple months back.. he is beautiful 😍.. dark blue and white and now shimmery green/blue on his body.. all healthy specimens


  • by Mark H

    I bought a Betta from this listing a little over a month ago, and I could not praise the company higher for their clear communication, professional shipping, and beautiful specimens. Despite his size he came shipped with two extra bags of warm water and plenty of heat packs, a way that made me feel confident this company does the upmost for the safety of their fish. My fish is gorgeous, healthy, and full of personality. Really cannot recommend highly enough.


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