Swordtail fish not suitable for fish bowls

Of all the live bearer fish , swordtail fish are least suitable for keeping in a fish bowl. Most fish sellers are pricing the fish fairly cheap at Rs 50 a pair, however they do not survive for long in a fish bowl.
It is observed that most swordtail fish are living for less than a week in a fish bowl, while guppies and other fish will survive for 3-4 months without any major problems
The male swordtail fish have a long sword like structure and this could be hitting the surface of the glass bowl, reducing their life.
Anyone having success in breeding swordtail in a fish bowl , please contact

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