matsy typeHalf Moon Betta Fish

Half-moon betta is also known as HM betta. It is one of the most popular betta along with Half-moon Plakat Betta (HMPK betta) in the world. They are common for an aquarium hobbyist to collect and breed due to their exotic uniqueness and identity.

Most people commonly mistake their delta betta to HM betta. Thus in this page, we will be discussing how to differentiate a real HM better and what details you should observe carefully. First let us get to know the history about HM betta. This breed was successfully developed in France and dramatically became popular across the world. This helped the

Thais to realize how beautiful their native fish can be and then they started to breed HM betta. Big thank to the France breeder! Here are some critical things you need to observe in a so-called HM betta fish facts before you decide to purchase. The body must be symmetrical! Having said that, the body must perfectly straight and no swells. The caudal peduncle should be thick and strong in order to hold the weight of the caudal fin.

This can be observed through a swimming of a betta. It must swim straight. The back of it (from the caudal fin to its head) must have a good smooth curve. If you notice any bump or swell, do not purchase. Lastly, the scales should be well organized and no wounds found. The dorsal fin must be big enough to at least overlap with the caudal fin properly. (This depends on how to determine or how you like it actually.)The caudal fin must spread at least 180 degree (half-moon!) or has a “D” letter shape. The fin is composed by many tail-twigs. Each tail-twig should have at least 8 sub tail-twigs (in order to be called a perfect half-moon tail) except the first tail-twig (which closest to the dorsal fin) and the last tail-twig (which closest to the back fin) which have only 4 tail-twigs.

Sometimes tail-twigs have more than 16 sub tail-twigs and up to 32 sub tail-twigs, this kind of caudal fin is called “rose tail” and they can sleep very well. The sub tail-twigs are overlapping each other, causing a rose-looking caudal fin. The anal fin should start from the pelvic fins and stop at the caudal fin when it overlaps. The first twig should lead toward the pelvic fins and the last twig should properly meet or overlap with the caudal fin (please refer to the picture post above).

There are two kinds of pelvic fins, slim and long fins and short and big fins or called “bow fins” in Thailand. The betta in the photo has short and big pelvic fins. Overall, if you are not too picky about your HM betta, your HM betta must have a 180 degree tail. Also please keep in mind that different people have different ideas of beauty. The beauty of HM betta is unlimited and can come in many different forms. I hope that this information is useful to you.

half moon