The bluefin killifish is actually a variety of fish indigenous on the coastal waters from the southeastern America. This fish is often known as the Atlantic bluefin killifish, Gulf bluefin killifish, and the bluefin mudfish. Try to remember while, they can be aggressive toward other fish but make great species https://customfishtank.health.blog/2025/01/17/4-facts-about-maintaining-your-aquarium-by-a-fish-tank-cleaner/