Danio - Breeding

Breeding

Some species of Danio, such as the zebra danio, are among the easiest aquarium fish to breed. Other species, such as Danio kyathit, are far harder to spawn. All scatter their eggs over the substrate. The eggs are not adhesive, and hatch within two or three days. Eggs will be eaten enthusiastically unless protected by a layer of marbles or heavy substrate planting.

Hybrids between some Danio species have been bred; the young can be raised to maturity, but are sterile.

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