Males are more brightly coloured than females, but the latter is required to guarantee peace and stability inside your team of danios. They get their title from their fins, reminiscent of a hippopotamus’s ears. They’re also related in physical appearance into the animal, that has a thick and stubby bodies. https://aquariumshops.fitness.blog/2025/02/11/4-questions-to-ask-while-interviewing-a-pond-cleaner/