Q&A for How to Selectively Breed Betta Fish

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  • Question
    What are some signs of a sick betta fish?
    Brian Blake
    Aquarium and Fish Expert
    Brian Blake is an Aquarium Expert and the Owner of Boodleshire Aquatics based in the Kansas City Metro Area. With over 20 years of experience, Brian is an expert in freshwater planted aquariums, saltwater reef aquariums, and aquarium installation, care, and maintenance. Brian holds a Bachelor's degree in Ichthyology and Aquatic Environmental Science from Emporia State University.
    Aquarium and Fish Expert
    Expert Answer
    Signs of a sick Betta fish include a paler hue than normal and white or cotton-like patches on their body, indicating a fungal infection. If they look like they're deteriorating or look cut-up, this is a symptom of fin rot, characterized by deteriorating fins. Additionally, other symptoms, such as cloudy eyes, visible lacerations, sores around the mouth, and lethargy, may indicate bacterial or parasitic infections. When diagnosing fish health, it's essential to look for multiple symptoms, as one symptom can have various underlying causes. This approach helps narrow down the primary cause and enables effective treatment.
  • Question
    Does that mean I can "tamper" with the species of the betta to create new or rare ones?
    Community Answer
    Yes.
  • Question
    What is a "hospital tank"?
    Community Answer
    It's just a separate tank used to hold any sick fish to prevent the spread of disease, but it can also be used when introducing new fish to a tank.
  • Question
    My female is resting on the side constantly, but occasionally comes to check out the nest. Is this normal? She has her white spot under her belly and vertical lines, full of eggs. Am I on track?
    Community Answer
    She may be tired if both the male and female Betta are in the same tank. The breeding process is very stressful for both fish, and can last for hours.
  • Question
    Is it safe to hang a mirror on an aquarium?
    Imbisale
    Community Answer
    No.
  • Question
    How long does it normal take for healthy betta fish to hatch?
    Community Answer
    Betta eggs take 36 to 48 hours to hatch after spawning.
  • Question
    What is the gap time between first and second breeding?
    Community Answer
    If you're asking how long you should wait to breed your bettas again after the first time, I would say that you should give them a rest of perhaps 2 months. If you can't wait that long, I recommend that you buy another pair of healthy bettas while the previous two rest.
  • Question
    Where can I get a pretty female for breeding that is around $25 in price?
    Community Answer
    Look at your local fish shops, you can best gauge the healthiness of a fish in person, or check out a reputable online seller.
  • Question
    When do you separate the male from the spawn?
    Community Answer
    After they're all swimming. So keep an eye on the rate the eggs hatch and as soon as they dwindle, take him out. The male may start eating them otherwise and any remaining eggs will have a little time to hatch.
  • Question
    How old do they have to be to mate?
    Community Answer
    There's no certain age, but once they start making bubble nests, they should be able to mate. Making a bubble nest is an indication of sexual maturity in males.
  • Question
    How long does it take for the betta fry to develop?
    Community Answer
    Up to six months. However, it depends on the individual. 4 to 6 months is the average.
  • Question
    Why do males make bubble nests?
    Jun Sohn
    Community Answer
    They sometimes make bubble nests when they are happy. Sometimes because they are ready to mate. Do not worry if they make a bubble nest when they have no mate. It is probably just because they are happy.
  • Question
    What if the water filter is too shaky, but the fish won't go near it?
    Jun Sohn
    Community Answer
    You should still turn the filter down, just in case. The fish may get stressed out.
  • Question
    Can we keep the male betta fish with his fry forever?
    Community Answer
    No, as the male fry will fight with the father, and the father will try to mate with his female children. If you want a fish that will always be with their fry, consider goldfish or guppies.
  • Question
    Can we breed a Full Moon male with a Crown Tail female?
    Haley Peng
    Community Answer
    You can breed any male with any female as long as they are interested and healthy.
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