Wild Betta are notably known not only for their excellent pattern but also finicky characterâ€•particularly when they are bredâ€•and getting stress easily because of the water changing, Macrostoma as an example.
To spawn a pair of the mouth brooder requires a stable temperature. Another condition is that the ambiance of the 60 cm x 30 cm aquarium should be calm. Such principles have made Hermanus J Hariyanto successful in spawning macrostoma with 90% survival rate. (Lastioro Anmi Tambunan)