Do bighead carp eat phytoplankton?
Bighead carp mainly feed on zooplankton as well as phytoplankton. According to Professor Ni Dashu, the average ratio of zooplankton to phytoplankton in bighead carp food is 1Ru 4.5, phytoplankton is dominant in quantity, but the biomass is much lower than that of zooplankton. On average, a zooplankton is 10 times or more larger than a phytoplankton. Therefore, from the analysis of the feeding habits of bighead carp, the occurrence rate of phytoplankton is not low, but zooplankton still play an important role in nutrition. According to this situation, the original Guangdong experience still has room for improvement, that is, the ratio of bighead carp to silver carp is 1:3, and it can also rise to 1.5v2.5. When silver carp fry is in short supply, bighead carp fry can also be used instead of bighead carp fry to increase the proportion of bighead carp.
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Breeding and breeding of traffic light fish
Traffic light fish also known as red lotus light fish, neon light fish, red and green neon light fish, red light fish, Cyprinidae, native to the upper Amazon tributary of South America. Traffic light fish is petite, only 3-4 cm long, but the body color is extremely gorgeous, there is the laudatory name of "queen" in tropical fish, it is one of the most popular tropical fish species. Above the side line of the fish, there is a blue band extending from the eyes to the tail handle, the back turns black later, and the lower anal fin is silvery white in front and bright red at the back. Black eyes, silver blue sockets
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Swim bladder disease
There are signs that the fish cannot control their position in the water, sometimes they can only do their best to rise from the bottom of the water, sometimes they can't get out of the water, or even upside down on the surface. If the disease is not caused by the disease in the affected fish, the problem may be due to the dysfunction of the swim bladder. Such problems are usually limited to deep-bodied fish, especially cyprinid fish. Scaleless fish seem to be particularly vulnerable. The recommended treatment has no effective treatment for this condition. By
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