Caring for Hatchet FishAlthough they're fascinating fish to keep, hatchet fish have a reputation for being delicate, so they're not a good beginner fish. However if you provide them with the right conditions they will thrive. They are happy with quite a wide temperature range (24ºC to 30ºC) but they're sensitive about pH and need slightly acidic water. They're vulnerable to white spot, especially when stressed, so keep a close eye on them.
Feeding Hatchet FishAlthough watching them catch flying insects is fun, you may prefer not to keep these at home, as there's always a risk of them escaping and infesting your house.
Never feed your fish wild insects as these may be contaminated with dangerous chemicals. The good news is that hatchet fish will do just as well on insect larvae, including freeze dried ones.