Blue Zebra Danio 

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Scientific name -Brachydanio rerio / Danio rerio
Bettas are a freshwater fish species that originated from countries such as Thailand, Cambodia, Vietnam, and Malaysia. They were usually found in shallow rice paddies, slow-moving streams, and stagnant waters of these Southeast Asian countries. They are extremely popular as aquarium fish due to their spectacular fin displays, vibrant colors, and relatively easy-care requirements. Many different varieties of bettas are currently available.
Body Shape – They possess elongated, torpedo shaped bodies with elaborate flowing fins (especially in males), giving them a majestic and dramatic appearance when displaying.
Optimum Temperature – 24 to 28 degrees Celsius
Optimum pH – 6.5 – 7.5
Lifespan – They may live up to 2 to 4 years with proper care.
Body Length – They can grow up to 2.5-3 inches in body length (excluding fins)
Sub Varieties – Veiltail, Crowntail, Halfmoon, Plakat, Double Tail, Rose Tail, Delta Tail, and many more fin types exist. Color varieties include Red, Blue, Purple,
Green, Yellow, White, Black, Marble, and countless combinations.