How to raise knife fish

Guandao fish, also known as "headscarf butterfly fish", belongs to the butterfly family, which is a common tropical marine fish. The graceful back is the symbol of the swordfish and the origin of its Chinese name. So, how to raise Guandao fish?

First, how to raise the knife fish?

Guandao fish can be as long as 25cm, so it is necessary to choose an aquarium with more than 250L to raise. The water temperature is between 24-27 ℃, the relative density of sea water is 1.022-1.023, and the ph value of sea water is 8.1-8.4. Feed fish meat, shrimp meat, crabs, shellfish, water earthworms, marine fish pellets, etc., suitable for mixed culture with mild fish and other fish of the same species, mixed culture should be put into the tank at the same time. Use old water as much as possible, not all new water.

Second, the characteristics of Guan swordfish

1. The body length is 18-25CM, and the body is flat and disk-shaped. The mouth is pointed and the head is triangular. There is a black belt between the eyes, a black band from the front of the first dorsal fin to the ventral fin of the pectoral fin, a black band from the back of the first dorsal fin to the end of the anal fin, and the tip of the first dorsal fin is long and silvery white. The second dorsal fin, caudal fin and pectoral fin are golden. Ventral fin black. The fish is black and white and very beautiful. Live in the upper and middle layers of water. Small group activities in the sea area of about 25 meters to 200 meters, lying low in the tank at night, resting belly up, and returning to normal in a few minutes after light.

two。 Habits inhabit reef plates in the subtidal zone, lagoons and coral reefs in the Mianhai area with a depth of 2mur40 meters, usually living in coral-covered areas. Most adult fish live in pairs, while young fish usually live alone in estuaries and lagoons. It mainly feeds on corals.

As the swordfish is a marine fish, regular testing of water quality is a very important task for all sea water aquarium breeders. Marine fish have poor tolerance to adverse water quality and sudden changes in the environment, so they should change as slowly as possible when changing the water quality or the environment, so as to avoid causing urgency.