Helfrichi FirefishThe Helfrichi Firefish (Nemateleotris helfrichi) is a peaceful, coral safe fish that can be kept with most other non aggressive fish. They may become territorial towards their own kind unless a mated pair is formed. They need a 20+ gallon aquarium with a sandy bottom and ample rock work. Helfrichi Firefish require a tight fitting lid as most Dartfish are prone to jumping. Firefish should be fed a diet consisting of meaty foods like mysis, brine, LRS,