Thứ Tư, 11 tháng 1, 2017

Betta Fish Breeding



Betta fish enthusiasts increasingly are many, both among children from childhood to adulthood. Because the fish is beautiful and also even more when the fish is ready to fight. Vibrant colours from male fish are exposed. This fish is also often called the fighting fish and the latin name is Betta splendens. It is a member from the Anabantidae (Labirynth Fisher). Betta fish tails and fins when it expands really captivate the lovers of ornamental fish. The color of the fish commonly known as beta fish is really interesting, and for the cultivation of these animals also do not require a vast place, so it can be done at home.

To breed betta fish, we just need a few things. First of all we need a pair of betta fish (a male and a female brood), a clean aquarium with proper water quality (temperature, dissolved oxygen and lighting), and also substrate for betta fish to lay their eggs. You may prepare artemia eggs to feed their larvae (baby fishes) once they are hatched from the eggs.





Description of Male Betta fish ready to mate are:

■ ± 4 months of age.
■ body shape and fins long and beautifully colored.
■ aggressive and agile movements.
■ healthy body condition (not disease).

The characteristics of female fish ready to breed are:

■ Age has reached ± 4 months
■ denotes rounded body shape ready to mate.
■ Movement is slow.
■ fin is short and the color is not appealing.
■ healthy body condition.

Steps for spawning and fish care

1.Prepare aquarium/ container with clean water. Add thermostate, temperature regulator if needed
2.Fill container with clean water with a height of 15-30 cm.
3.Put the male betta fish in advance, 1 day before mating
4.Put the female the day after the male
5. Quickly move Broods, and keep the eggs in separate place.
6. Watch out for fungal pathogens that could attack eggs.. put some Methylene Blue in the aquarium containing eggs

Betta Fish Breeding was post here post

Living Fish Found Inside Jellyfish in Bizarre Underwater Scene

Are you trudging through life slowly? Well, this fish—found inside a jellyfish—can sympathize with you.

Back in December, ocean photographers Tim Samuel and Franny Plumridge were freediving in Byron Bay, off the east coast of Australia, when Samuel spotted a curious scene. He made a picture of a yellow fish stuck inside a translucent jellyfish and posted it to his Instagram account.

It wasn’t until DiscoverOcean republished the picture on Tuesday that the image went viral. Samuel says he later posted the picture to Reddit, where it made the trending list—twice.

“Woke up this morning to my phone going crazy due to one [of] my photos being reposted,” Samuel wrote on Instagram. “It is crazy how much attention this little guy is getting.”
Picture of fish inside jellyfish
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Another view of the odd couple.
Photograph by Tim Samuel

In his years of photographing marine life, Samuel hadn’t seen a similar scene before. The fish’s tail was sticking outside the back of the jelly, so it was able to propel the creature forward. Over the 20 minutes that Samuel and Plumridge watched in curiosity and amazement, the fish/jellyfish wobbled and swam in circles. The fish knocked the jelly off balance and pushed it from side to side in the water. At some points, the duo just stopped moving.

“I’d never seen anything like it before,” Samuel says.

After taking in the scene, Samuel and Plumridge left to photograph turtles.

"I definitely thought about setting it free,” Samuel told CNN, “but in the end decided to just let nature run its course."


Watch: Another mysterious jellyfish

So What is Going On?





While that fish is probably still wondering how it got inside that jellyfish, researchers are questioning the species of both these animals.

Rob Condon, an assistant professor at the University of North Carolina Wilmington, which houses the Jellyfish Database Initiative, says the jelly might be a hydromedusa. He says many types of animals associate with jellies, but he’s uncertain about the exact species of the fish.

“The importance of these types of associations are poorly understood but jellies are likely providing key ecosystem services that benefit the fish species in this regard,” Condon writes in an email.

Lisa-Ann Gershwin, a jellyfish taxonomist who has discovered about 200 species of jellyfish, is also questioning the jelly’s species.

Gershwin says the jellyfish looks like a chimera of two different classes, Cubozoa and Scyphozoa. But the number and look of the animal’s tentacles, as well as its shape, don’t add up to either class.

“Something really strange is going on there,” Gershwin says.

The unidentified fish has probably been inside the jellyfish for a while, Gershwin says, which would have deteriorated the jellyfish. But if the jelly had deteriorated, it wouldn’t have any tentacles left.

Gershwin adds that it’s “totally normal” for fish to use jellies for feeding, protection, and locomotion. She’s just perplexed about both the animals and the photo.

This story was updated on July 8 at 5:30 pm ET with more info about the animals.

Living Fish Found Inside Jellyfish in Bizarre Underwater Scene appeared frist on nationalgeographic.com