Likewise, old records from Sri Lanka are highly questionable and remain unconfirmed. It has frequently been said to occur in Myanmar (Burma), but this is entirely based on pre-1930 records and likely refers to close relatives only described later, notably Danio kyathit. Its range further south is more local, with scattered records from the Western and Eastern Ghats regions. Its range is concentrated in the Ganges and Brahmaputra River basins, and the species was first described from Kosi River (lower Ganges basin) of India. The northern limit is in the South Himalayas, ranging from the Sutlej river basin in the Bangladesh–India border region to the state of Arunachal Pradesh in northeast Indian. The zebrafish is native to fresh water habitats in South Asia where it is found in India, Pakistan, Bangladesh, Nepal and Bhutan. Zebrafish are also closely related to the genus Devario, as demonstrated by a phylogenetic tree of close species. It has a sister-group relationship with Danio aesculapii. Another downside is that you’ll eventually have to catch the adult danios when it’s time to move them out of the breeding tank.The zebrafish is a derived member of the genus Brachydanio, of the family Cyprinidae. The downside is that you have to physically make each mop.

An upside to this method is that the spawning mops are homemade, usually with old materials you (or a friend or family member) has anyway, so you don’t have to spend money on anything new items.

Put a knot in the top of the bunch, where you’ve folded it in half, to hold all the pieces together.

You should now have ~48 strands of yarn hanging down.

Lay 2 dozen of these yarn pieces beside each other and fold the bunch in half, right in the middle.Cut pieces of acrylic yarn to ~2 feet in length.You can easily make your own spawning mops using the following instructions:.The yarn will partially float in the water creating a protective area for the eggs, similar to seaweed. Place the spawning mops at the bottom of the tank and fill the tank with water that goes no further than a couple of inches above the top of the mops. For a 10-gallon tank, you’ll need about 10 to 20 spawning mops. A spawning mop is a bunch of acrylic yarn knotted together to form a mop-like contraption. You can easily overcome this downside by asking someone at the aquarium store for assistance. The downside is that you have the find the right net for danios so the adults can’t get through the mesh, but the eggs can. You won’t need to catch any of the adults in the main tank. The upside to using a breeder net is that it’s really easy to put the adults in the net and take them out of the net.You can buy a breeder net in most pet stores and aquarium shops.

When looking for a breeder net, make sure it’s big enough to allow the danio eggs to fall through.Once the breeder net is placed in the tank, fill the tank with water until the bottom 1 inch of the breeder net is under water. The mesh of the basket allows the eggs to fall through, into the main part of the tank, but the mesh keeps the adults from being able to get to the eggs. A breeder net is basically a basket that can be attached to the rim of the tank. Another method to help protect danio eggs and babies is to place a breeder net inside the breeding tank. Another downside is that you have to “catch” the adults once they’ve bred, as they’re not contained in one area. The downside to this arrangement is that glass marbles have become expensive in recent years and this method may be more expensive then other methods. The upside to this arrangement is that it’s really easy to implement, as glass marbles are easy to find.Or, you can use glass “rocks” from a decorating store or Ikea that are normally used in flower arrangements or candle holders. These are not special marbles, just regular marbles you’d buy in a dollar store or toy store.The eggs will then fall in between the marbles, where they’ll be safe from the adults.This provides enough room for the adults to swim around, and a very short fall for the eggs to take to their safe place in the marbles. Then fill the aquarium with water until it reaches about 1 inch above the marbles. One method that will help protect danio eggs is to place a 2-inch layer of glass marbles at the bottom of a 5 to 10 gallon aquarium. Use marbles to create a safe place for the eggs.

Goldfish and zebra danios