Green Alien Betta

This offer is based on a pre-order basis. It may take up to 15 working days (except weekends and holidays) before this order is shipped. If there are any questions you have then please get in touch before you place an order.

This product is currently out of stock and unavailable.


The Green Alien Betta (Thailand) is being offered for sale in this listing. The picture above is only there for illustrative purposes. The fish is around 3 to 4 cm in size.

The ideal tank size for wild bettas is between 10 and 40 litres, and it should be planted, filtered, and heated. Biotopes are typically the best option, since they resemble their natural environment and provide beneficial tannins that Alien Bettas like, as they keep the water soft and somewhat acidic.

Dried almond or oak leaves are an excellent and simple source of tannin. It’s suggested to use half a leaf per approximately 20 litres of water, but the more you use, the better. As long as your water has a tea-like hue, your fish will have no trouble changing colour and settling in.

We keep our Alien Bettas in individual 8-litre bare bottom tanks adjacent to one another with no filtration, performing 60% water changes every four days using old water that we have let out for a week to remove any pollutants that may be in the water.

It is a common misconception that Alien Bettas are peaceful and can live in groups with males or pairs. If given the chance, these fish will fight for territory and in such a small tank, this could result in deaths. Male and female pair in tanks have worked, but this is not always the case because after they spawn the male will be very aggressive protecting his eggs, so the stress on your female is not reassuring.

The water temperature should be between 24°C and 27°C, pH can range from 5 to 7, and water hardness should be between 0 and 8 dGH. You must have dried almond or oak leaves for tannin. Alien Bettas benefit from tannin as it softens the water, lowers the pH, and replicates their natural habitat. Tannin also reduces the risk of infection during these vital stages when your fish is adjusting to its new environment.

A planted aquarium with a lid is strongly advised, since providing these creatures with the most natural environment will always enhance their adaptations. Live plants provide coverage and maintain the water’s parameters. A lid will also prevent them from leaping, since they are quite agile and will jump out of the tiniest of openings. Floating plants and tall growing plants are excellent for Alien Bettas. They enjoy to swim through the roots of floating plants like frogbit, water lettuce, and tall growing plants like hornworts and rest on them.

Live foods such as Daphnia, Tubifex, Bloodworms, Blackworms, White Worms, Grindal Worms, Artemia, Cyclopes are highly recommended as this is what we feed our fish. Live foods will get them hunting and help restore their apatite, feed small portions only after a few hours of them roaming their new tank; don’t feed them immediately as they typically won’t eat after being removed from the bag.

Avoid any flaring or sighting of another betta for the next 72 hours. We should let them have their own region that they believe is theirs, as this will assist your fish develop confidence and flare in the future when the male fish sees another male or the mirror.

It is normal for Alien Betta to be completely pale and brown with stressed stripes and clamped fins for the first few days, but once they begin to settle their colours should begin to return and fins will begin to open up. After 3 – 4 days it is usually safe to play with your fish, but don’t pressure the male into flaring too much as he may still be adjusting.

If you purchase more fish or other goods, we will combine the costs of shipping them to you. Before placing a purchase, please make sure that you have thoroughly reviewed our Delivery Conditions. If there are any questions you have then please get in touch before you place an order.

Additional information

Weight0.3 kg