Zebra Danio Pregnancy: Myths and Facts
My 20 gallon aquarium has three zebra daneos. One has a round stomach. We assume that it must be "she" and "she" is pregnant. I tried to find some information about this fish online but I didn't find enough detail. The pet store asked us to separate it from others, and we have, but after reading something else, I'm thinking I should keep the male and female together until the eggs are found. This fish has been fat for some time, and someone told my husband that she could be pregnant for a long time. Is it true or not? Thank you!
Zebra Danio Breeding: Easy but Hidden:
You may be disappointed to know that Zebra Daneos can't get pregnant – they're not going to live. But you will be happy to hear that the breeding of zebra daneos is very easy. They are probably breeding in your aquarium right now, although you may not know it because small eggs and fries are eaten through fish and sucked through the filters of the fish tank. You also need to keep the male and female together to achieve success - although some enthusiasts set them apart for a time to bet for their growth.
Zebra Danio Breeding: Easy & Affordable Methods:
Zebra Danios (Danio Rerio, first Brachydanio Rerio) scatter non-adhesive eggs between plant leaves and substrate. However, breeders quickly return to eating eggs, so a hobbyist who wants success in breeding these fishes needs to take precautions to protect the eggs. A popular way to breed zebras is to take a 5 or 10 gallons of naked fish aquarium, and apply a 2-inch deep marble layer below. Fill with water only up to 1 inch on marbles. This gives parents a shallow layer of water for swimming, and the eggs easily fall between the marble, beyond the reach of hungry adults. After spawning, remove the adults.
But have you checked the price of marble recently? Oh! A 2 inch layer is far from cheap! Another way I actually like better is to hang the breeder net in a small empty aquarium (the breeder net is a pure basket sold in aquarium stores). Get with a thick mesh so the eggs can fall - the fine mesh won't work.
Setting Up a Zebra Danio Breeding Tank:
Fill the aquarium with fresh water (new water stimulates the fish to breed) unless only the bottom of the net breeder is under water. Put a heater on, and set the temperature to about 78 to 82 degrees Fahrenheit. You cannot use a regular filter system, because it will pick and fry the eggs. An airstone attached to the air pump will work right now. Don't forget to dechlorate your tap water with a proper water conditioner.
Now, you are ready to introduce the breeding stock. Two men are the best for each woman. The males are thinner than the females, and their colors are often slightly darker. Place the fish in the breeder net. When the fish grows, the eggs will fall from the net and descend under the aquarium. (That's another advantage over marbles - you can actually see if you have eggs.)
Normally, the fish grows the next morning. Remove adults and breeder nets later. Eggs hatch in one and a half to two days, but after that there will be no free swimming for two more days (it varies slightly with the temperature).
Caring for Zebra Danio Fry: Feeding and Growth Tips!
Do not feed the fry until they are all ready – you will only contaminate the aquarium. The zebra denio fry is very small and transparent. You will have to see them very hard to see them first. It also presents a minor problem that they are too young to accept baby snacks as the first food. Find small containers of powder aglier fish foods sold at aquarium stores. Feed lightly several times a day, and change 10% water daily for maximum growth.
Conclusion our this blog:
Zebra Danios don't get pregnant; they lay eggs. The round belly may indicate eggs inside, not pregnancy. Keep the male and female together to encourage breeding, but separate them after spawning to protect the eggs. Use marbles or a breeder net to keep eggs safe from adults. After hatching, care for the fry with powdered food and regular water changes.
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