The croaking tetra (Glandulocauda inequalis) was a puzzle to breeders for a long time until it was found that a normal-appearing courtship is not followed immediately by egg laying. This occurs a day or so later, in the absence of the male, when the female deposits fertile eggs singly on the leaves of plants. This fish gets its name from the noise made by males.
A number of fishes are community breeders, spawning in large groups of mixed sexes. This happens with some of the barbs, such as B. conchonius and B. ticto, but they are also able to spawn in pairs. Some of the rasboras are much more choosy and very rarely spawn except in communities. Rasbora heteromorpha will spawn fairly readily when at least 8 or 12 fishes are present and very readily in communities of larger size, when unfortunately the eggs are nearly all consumed on the spot by the onlookers. The best results so far have been reported with the smaller groups, placed in planted tanks so that their habit of depositing eggs on the underside of growing plants can be practiced. Breeders are removed as soon as activity ceases or as soon as any of the fishes present begin to eat the eggs.
Aquarium Fish Information Here…
Aquarium Fish
