Stay away from maintaining different species underneath the identical genus jointly, as they might deliver undesired hybrids. The Marbled Hatchetfish you at this time obtain from the trade are wild-caught, so we propose quarantining them in advance of introducing them to the main tank. Nonetheless, a larger tank offers this https://www.edocr.com/v/lww5mj8l/aquariumshops/how-to-take-care-of-your-flowerhorn-fish