Steel Blue Killifish male 3-4CM Killifishes are typically social creatures in their natural habitat, preferring to swim in groups for their overall health and happiness. When left alone, they can easily become stressed. However, it’s important to note that keeping multiple male Killies together can be risky. They have a tendency to be aggressive towards one another and may engage in fights. To ensure a harmonious environment, it’s recommended to maintain the appropriate male and female ratio of 1:1. Additionally, it’s crucial to keep the water temperature cool when raising these species together. all sizes are approx
