27th Nov 2009

How to Care for Koi Fry

Whether kept in a home aquarium or pond, koi are prized fishes to keep and are very much appreciated by aquarists worldwide. Its ornamental value and symbolism makes koi keeping a very popular tradition especially in certain parts of the world. The longevity of these fishes is owed to their being hardy and ability to tolerate varying temperature changes. This particular species reproduce through spawning and the large number of eggs they lay is fertilized by either one or many male kois. Though known to be non-demanding fishes, caring for koi fry tells a different story.

When koi eggs are successfully spawned and fertilized, eggs needs to be separated from their parents to prevent them from being eaten up. Water temperature needs to be set to allow the eggs to hatch. Care for the resulting offspring involves quite a lot of work to ensure their survival. By this time, their mouths have not yet fully developed so feeding the fry for the first 3 to 4 days is discouraged as it would only cause the water to become cloudy and be contaminated. Making sure your pumps are functioning well to keep your water aerated is of utmost importance during this period as their respiratory system is still underdeveloped.

You could start feeding your fry on the third or fourth day. Newly hatched brine shrimp is mostly fed to the very small koi fry. To provide them the protein they require to develop and grow, hardboiled eggs or finely ground high protein koi food could be given. Daphnia, an abundant pond crustacean, is also among the recommended first foods for koi fry. By nature, koi are bottom feeders. Extra care is therefore needed when feeding fast sinking food since uneaten particles can pass unobserved and could cause water condition changes which could be disadvantageous for the fry. Frequent water change should be given attention to once feeding is started since the use of filters could risk some of the fry from getting sucked up into it.

Culling your fry could be done on the fourth week. The ones with certain deformities and unwanted characteristics could be taken to pet stores as donations. Koi with the characteristics desired for breeding will be kept and properly maintained. Raising koi fry may require a pretty amount of space and time, but the beauty and deeper meaning of keeping kois make the hobby very rewarding. Owning one of the most famous and fascinating underwater creatures makes everything well worth it.

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27th Oct 2009

Betta Fish Facts

Betta fish are probably one of the nicest looking fish around. Also known as Siamese Fighting Fish (Betta splendens), they are one of the most popular specie for freshwater aquarium display. These ray-finned creatures are most appreciated for their brilliant colors. Though they come in all sorts of shades, red, blue and green are the most common. They often come in a combination of such colors and results in very unique color designs. Male betas tend to be more colourful and have longer fins than the females.

These creatures require very little to survive. Because of the low cost of maintenance and ease of care, they are more preferred to be kept by aquarium owners and fish enthusiasts. Those who are starting out in their fish keeping hobby tend to be advised on this specie over others that require a great deal of time and attention, and more often expertise to make them thrive. Bettas are discovered to tolerate poor water conditions and could live in smaller spaces (like small sized aquariums). But that doesn’t mean they have to be kept such way. Like any other fish, you need to provide them proper habitat and regular water change. Betta fishes have a fairly short lifespan, but with the right conditions, they could live up to three or four years.

Bettas are called Siamese Fighting Fish for a reason – - – they actually fight. Their aggressive nature is a distinguishing trait for Betta fishes. Such behavior stems from the need to protect their territory and to eliminate competition for food. The males tend to be more aggressive towards each other and even their own reflection could intimidate them as they perceive it as another male. Since Siams/Bettas only attack other males, it is never a wise idea to put two males on the same tank, as it would always result on one of them dying. However, a male betta may also attack a female if he feels threatened by her. Its aggression is easily seen when a betta would flare up his fins to try to make himself appear bigger and more superior than the other one. Female betas, on the other hand, are not aggressive and would do well if placed together.

Bettas breed quite different too. A male “courts” a female betta by building a bubble-nest among the leaves of floating plants where the eggs spawned by the female would be placed later on and would be fertilised by the male Betta himself. One other distinct feature of Siams/Bettas is their ability to breathe oxygen both in water and air owed to the labyrinth organ in their heads. This enables them to live in oxygen-poor environments. But that doesn’t mean they require less oxygen than other species. By nature, bettas feed almost exclusively on insects and larvae. Frozen or freeze-dried bone shrimp, daphnia, plankton, glassworms could be excellent options for feeding your betta pets.

Bettas bring a lot of life and beauty wherever you place them. They may have an aggressive nature, but some betas love to be raised from the water and stroked. They love swimming in their caregiver’s hand. You see, they can have their own personalities and could be man’s bestfriend. The beauty, grace and unique personalities of Bettas make them ideal pets.

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