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How to Identify Pregnant Fish

January 24, 2024 by admin Category: How To

You are viewing the article How to Identify Pregnant Fish  at Tnhelearning.edu.vn you can quickly access the necessary information in the table of contents of the article below.

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wikiHow is a “wiki” site, which means that many of the articles here are written by multiple authors. To create this article, 46 people, some of whom are anonymous, have edited and improved the article over time.

This article has been viewed 87,046 times.

Just do a quick search on the internet and you can instantly know what species of fish you breed lays eggs or gives birth to. You’ll know if you need to watch the fish’s belly swell because of pregnancy or if you should notice the tiny round jelly-like eggs in the aquarium. If you’re planning to raise juveniles, try to learn as much as you can about the species of fish you’re keeping, as raising juveniles isn’t always easy.

Table of Contents

  • Steps
    • Recognizing pregnant fish
    • Recognize signs of nesting and laying eggs
    • Raising baby fish
  • Advice
  • Warning
  • Things you need

Steps

Recognizing pregnant fish

Image titled Tell if Your Fish Is Having Babies Step 1

Image titled Tell if Your Fish Is Having Babies Step 1

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Apply this method to fish that give birth. Guppies, molars, swordtails and platyfish are probably the most popular varieties of spawning aquarium fish. In these fishes, the male and female fish mate, then the female fishes the eggs in the abdomen. Within a month or two (with most aquarium fish), the eggs will hatch into fry, and the mother will give birth.

  • Search online for the name of the fish you are keeping to see if it is an oviparous or a live birth (viviparous).
Image titled Tell if Your Fish Is Having Babies Step 2

Image titled Tell if Your Fish Is Having Babies Step 2

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Identify male and female fish. As a general rule, in spawning fish, the male is usually brighter or more splendid in color, with a long, narrow anal fin near the tail. Females are usually duller in color, and the anal fins are often fan-shaped or triangular. If you can determine the sex of the fish, it will be easier for you to distinguish between two fish that are fighting (usually two males or two females) or mating or preparing to mate (one male and one female). female).

  • For some fish that are difficult to sex, you may need to consult a specialist at your aquarium store.
Image titled Tell if Your Fish Is Having Babies Step 3

Image titled Tell if Your Fish Is Having Babies Step 3

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Observe mating rituals. Different fish species may exhibit different behaviors during mating, mating, and other mating-related behaviors. In many species, including most fortune fish, males often aggressively chase females, sometimes causing scratches, bites, or other injuries. In other species, such as discus, a pair of male and female fish work together to protect an area of the tank from other fish. In either case, when actually mating, the male and female fish may entangle each other, turn over, twist around, or exhibit other subtle behaviors.
Image titled Tell if Your Fish Is Having Babies Step 4

Image titled Tell if Your Fish Is Having Babies Step 4

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Notice the swelling of the fish belly during pregnancy. Normally, the pregnant female’s belly will be enlarged, round or “boxy” within 20-40 days.

  • Some species such as the snout have a natural bulge, but the bulge is located in the front, just below the gills of the fish.
  • “Overweight” males may have a bulge in the anterior pectoral. If you do not feed the fish for two or three days, the bulge may shrink, while the enlarged abdomen of the pregnant female is still visible.
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Image titled Tell if Your Fish Is Having Babies Step 5

Image titled Tell if Your Fish Is Having Babies Step 5

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Find a red or black dot. Pregnant females often develop a “pregnant dot” on the abdomen, near the vent. Usually this spot is black or bright red, and becomes more prominent during pregnancy.

  • This spot may always be present in some fish, but the color of the dot will become lighter or darker as the fish becomes pregnant.
Image titled Tell if Your Fish Is Having Babies Step 6

Image titled Tell if Your Fish Is Having Babies Step 6

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Determine how to care for the fry. Raising juveniles can be extremely challenging and often requires a separate aquarium so the adult fish or a water filter won’t harm them. If you are not ready for this task, try contacting an aquarist or an experienced aquarist willing to help you or take the fish away. If you decide to take care of your fry, you can start with the guide to raising fry below, but it’s also a good idea to learn more about the breed of fish you’re keeping.

Recognize signs of nesting and laying eggs

Image titled Tell if Your Fish Is Having Babies Step 7

Image titled Tell if Your Fish Is Having Babies Step 7

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Apply this method to fish that lay eggs. Many aquarium fish are egg-laying species, including discus, bettas, and most varieties of fish. In these fishes, the female lays hundreds of eggs. They usually lay in nests on the bottom of the tank, on the sides of the tank or on the surface of the water. If there is a male fish in the tank, he can fertilize the eggs after the female spawns or mate with the female before, depending on the fish species. The eggs will hatch into fry.

  • Look up the name of the fish you keep online to see if they are oviparous, or live birth (viviparous).
  • In some fish species, the female has the ability to store semen for several months before using it to fertilize eggs, so a new aquarium filled with only female fish can still spawn.
Image titled Tell if Your Fish Is Having Babies Step 8

Image titled Tell if Your Fish Is Having Babies Step 8

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Watch for signs of fish nesting. Some spawning fish create nesting areas to protect the eggs. These nests may look like small holes or piles of gravel, but are not always obvious. Some very talented fish are able to build elaborate nests out of a clump of foam, usually made by the male on the surface of the water.
Image titled Tell if Your Fish Is Having Babies Step 9

Image titled Tell if Your Fish Is Having Babies Step 9

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Check the fish eggs. Some females of this species have enlarged bellies as eggs develop inside, but this is usually not a major change and does not last long. The eggs laid out often look like tiny round jellies. Usually fish eggs are scattered throughout the water, but in some fish the eggs can collect in the nesting area or stick to the bottom of the tank or the walls of the tank.

  • Many species of spawning fish also engage in mating behaviour, including most fortune teller fish. They often show a very energetic expression, which lasts several hours and ends with egg-laying.
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Image titled Tell if Your Fish Is Having Babies Step 10

Image titled Tell if Your Fish Is Having Babies Step 10

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Prepare eggs to hatch. Caring for fry can be hard work, but even if not prepared in advance, you still have some time before the eggs hatch. You should consult an aquarium store if you plan to raise your own fry, as the rearing process can vary depending on the species of fish. If you’re not prepared, refer to the following section on raising juveniles for basic advice, but don’t expect this method to be optimal for all fish species.

Raising baby fish

Image titled Tell if Your Fish Is Having Babies Step 11

Image titled Tell if Your Fish Is Having Babies Step 11

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Learn as much about the species of fish as you can. The guide below can provide you with the basics and helpful steps to respond if your aquarium suddenly appears full of fry. However, taking care of the fry is a real challenge, and the more you know about the characteristics of your fish, the better.

  • For more detailed information about a particular fish, follow these guidelines for breeding and keeping discus, fortune teller, betta, and guppies.
  • Ask for advice from an aquarium shop staff or an online forum of aquarists. Advice from those places is often more helpful than advice from a general pet store.
Image titled Tell if Your Fish Is Having Babies Step 12

Image titled Tell if Your Fish Is Having Babies Step 12

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Replace the regular filter with a sponge filter. If you are using a filter that absorbs water or creates a flow, replace it with a sponge filter from your aquarium store. If you don’t, the current can exhaust the fry, they can even get sucked into the filter and die.
Image titled Tell if Your Fish Is Having Babies Step 13

Image titled Tell if Your Fish Is Having Babies Step 13

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Fish isolation. Many breeders install another aquarium and transfer the eggs or fry there. However, if you are not an experienced aquarist it is difficult to create a safe and stable environment in the short term. Instead, you can use a plastic mesh net purchased at the aquarium store to isolate the fish. Depending on the species, the brood may either care for or eat the fry, so you should try to find advice online that is appropriate for the species of fish you are keeping. If this is not possible, isolate the fish based on the behavior of the brood:

  • If the brood spawns in the nest and protects the eggs from other fish, use a net to separate the brood and eggs on one side and the other fish on the other.
  • If the mother fish gives birth or lays eggs in the water, you need to keep the adult fish on one side of the net. The fry can swim through the net to avoid the adult fish.
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Image titled Tell if Your Fish Is Having Babies Step 14

Image titled Tell if Your Fish Is Having Babies Step 14

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Feed the fish with fry food. Sometimes you can buy a “fry food” at the aquarium store, but often you need to choose between a variety of fish food. Grassworms, liquid fish food or rotifers are generally safe for fry. However, the fish will need additional food as they grow. These types of food can vary depending on the fish species and fish size. Ask the staff at the aquarium shop to find out what kind of food for the fish you are keeping.

  • If you can’t go to the aquarium store, you can feed the fry with well-boiled egg whites pressed through cheesecloth.
  • Image titled Tell if Your Fish Is Having Babies Step 15

    Image titled Tell if Your Fish Is Having Babies Step 15

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    Prepare to raise fish to adulthood. Pre-install another aquarium if you plan to keep some fish. If not, contact your aquarist or aquarist in advance to plan to sell or give away the fry when they reach a certain age.
  • Advice

    • If you don’t want the fish to spawn, you need to separate the male and female fish. If it’s too late, you should contact the aquarium shop. They can take fish.

    Warning

    • If the fish is getting fat, moving slowly and the scales are erect, you need to seek professional advice or at a pet store. It is possible that the fish is sick, not pregnant.
    • Unless you create the right environment, most or all of the fry will die.
    • Never release fish into the wild, unless that’s where you brought the fish home. If not, you may unknowingly introduce an environmental destructive infestation in the area.

    Things you need

    If you want to keep the fry:

    • Small backup fish tank or mesh divider
    • Small sponge filter with pump and accessories
    • Food for fry
    • The right place to raise the fry when they are big and the tank becomes cramped
    X

    wikiHow is a “wiki” site, which means that many of the articles here are written by multiple authors. To create this article, 46 people, some of whom are anonymous, have edited and improved the article over time.

    This article has been viewed 87,046 times.

    Just do a quick search on the internet and you can instantly know what species of fish you breed lays eggs or gives birth to. You’ll know if you need to watch the fish’s belly swell because of pregnancy or if you should notice the tiny round jelly-like eggs in the aquarium. If you’re planning to raise juveniles, try to learn as much as you can about the species of fish you’re keeping, as raising juveniles isn’t always easy.

    Thank you for reading this post How to Identify Pregnant Fish at Tnhelearning.edu.vn You can comment, see more related articles below and hope to help you with interesting information.

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