Getur einhver sagt mér hvernig maður kyngreinir Red-tailed Shark
er að fara spá í að rækta þá en kann ekki að kyngreina þá.
Kyngreining á Red-tailed Shark
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10 sek á google gaf mér þessi svör:
Gender : Hard to determine, but the female may have a grayer stomach whereas the males are solid black
Breeding the Red tail shark in aquariums can be hard, and the Red tail sharks in fish stores have therefore usually been imported from Thailand. In Thailand, large amounts of Red tail sharks are produced in fish farms each year. Only occasional reports of Red tail shark spawnings in aquariums exist. One of the problems that must be overcome if you want to breed Red tail sharks is the fact that they are very aggressive. Keeping more than one Red tail shark in the same aquarium will usually result in a lot of violence, and this is naturally a problem if you intend to breed them. Sexing is also difficult. Females may have a less pointed dorsal fin.
Reports of hobbyist breeding Epalzeorhynchus Bicolor are very rare. What I have found is that a large well planted tank with a ratio of more females to males is needed. The females are more robust and rounded than the males. A spawning tube will appear weeks before spawning and the male fertilizes the eggs in jerky thrusting motions as the eggs are scattered. It is said that the eggs hatch in a couple of days and the fry are easy to raise. Most breeding is done in open ponds in their native Thailand and exported around the world.
s.s. frekar ólíklegt til árangurs
Gender : Hard to determine, but the female may have a grayer stomach whereas the males are solid black
Breeding the Red tail shark in aquariums can be hard, and the Red tail sharks in fish stores have therefore usually been imported from Thailand. In Thailand, large amounts of Red tail sharks are produced in fish farms each year. Only occasional reports of Red tail shark spawnings in aquariums exist. One of the problems that must be overcome if you want to breed Red tail sharks is the fact that they are very aggressive. Keeping more than one Red tail shark in the same aquarium will usually result in a lot of violence, and this is naturally a problem if you intend to breed them. Sexing is also difficult. Females may have a less pointed dorsal fin.
Reports of hobbyist breeding Epalzeorhynchus Bicolor are very rare. What I have found is that a large well planted tank with a ratio of more females to males is needed. The females are more robust and rounded than the males. A spawning tube will appear weeks before spawning and the male fertilizes the eggs in jerky thrusting motions as the eggs are scattered. It is said that the eggs hatch in a couple of days and the fry are easy to raise. Most breeding is done in open ponds in their native Thailand and exported around the world.
s.s. frekar ólíklegt til árangurs