![]() ![]() Remove the adults and the breeder net afterward. Normally, the fish will spawn the following morning. (This is another advantage over marbles – you can actually see whether you’ve got eggs.) When the fish spawn, the eggs will fall through the net and land on the aquarium bottom. Males are slimmer than females, and their colors are often slightly deeper. Now, you’re set to introduce the breeding stock. Don’t forget to dechlorinate your tap water with a proper water conditioner. An air stone attached to an air pump will work for now. You cannot use a regular filter system, because it will pick up the eggs and fry. Install a heater, and set the temperature to around 78 to 82 degrees Fahrenheit. ![]() Get one with a coarse mesh so that the eggs can fall through – fine mesh will not work.įill the aquarium with fresh water (new water stimulates fish to breed) until only the bottom inch of the net breeder is underwater. After spawning, remove the adults.īut have you checked the price of marbles lately? Yikes! A 2-inch layer is far from cheap! Another method I actually like better is to hang a breeder net in a small empty aquarium (a breeder net is a net basket sold in aquarium stores). This gives the parents a shallow layer of water for swimming, and the eggs easily fall between the marbles, out of reach of hungry adults. Fill with water to only 1 inch over the marbles. A popular method of breeding zebras is to take a bare fish aquarium of 5 or 10 gallons, and put a 2-inch-deep layer of marbles on the bottom. The breeders quickly revert to eating the eggs, however, so a hobbyist who wants success breeding these fish needs to take precautions to protect the eggs. Zebra danios ( Danio rerio, formerly Brachydanio rerio) scatter nonadhesive eggs amid plant leaves and substrate. You also need to keep the males and females together to have success – although some hobbyists separate them for a time to condition them for breeding. They’re probably breeding in your aquarium right now, although you won’t know it because the tiny eggs and fry are eaten by the fish and sucked up by the fish tank filters. But you’ll be happy to hear that zebra danios are very easy to breed. You might be disappointed to find out that zebra danios can’t become pregnant – they are not livebearers. This fish has been fat for some time, and someone told my husband they can be pregnant for a lengthy time. The pet store told us to separate it from the others, and we have, but after some more reading, I’m thinking I should have the male and female together until the eggs are laid. I tried to find some information online about this fish but have not found enough detail. We assume that it must be a “she” and that “she” is pregnant. I have three zebra danios in my 20-gallon aquarium. ![]()
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