Betta Macrostoma

In The Wild

Date Classified:


Native Location:



Waterfall pools and rivers


Fruit flies, insects, mosquito larvae

Water and Hardness:

Soft to moderate hardness – 10

Water Temperature:

74-79 degrees Fahrenheit

Water pH:


In Aquaria:

Physical Appearance:

  • Male – orange-brown
  • Male – black face/head with wide orange band
  • Female – Lighter orange-brown
  • Female – lacks the black face/head and red marks
  • Female – two black stripes on body


  • Male – pectoral fins have black rays
  • Male – anal fin has black margin edged in lighter color
  • Male – dorsal fin has black spots with white margins
  • Male – caudal fin has white margins and wide black submargins
  • Wild males are brighter red
  • Female – darker margin on caudal fin


5 inches in length

Feeding in Captivity:

Live foods are best. Will eat frozen adult brine shrimp and frozen bloodworms.

Water and Hardness:

Demands highly oxygenated, extremely clean, soft water

Water Temperature:

At least 75 degrees at all times

Water pH:



This fish requires a covered tank because it is known as a jumper. The tank should be darkened and include RO or rainwater. Siphon bottom of tank regularly and change water frequently. Plant and float abundant vegetation and supply this fish with four-inch lengths of three-inch PVC pipe or flowerpot caves. Betta macrostoma are difficult to breed.