Basics on breeding some of the more commonly bred tropical fish

2) What Should I look for when Selecting a Breeding Pair of Tropical Fish?
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Some of the easiest cichlid fish to keep and breed in such a setup are the small Central American species, notably the convict (Cryptoheros nigrofasciatus) and other members of the same genus. They grow to about 4 inches and are reasonably easy to sex. For example, C. nigrofasciatus females (normal forms, not albinos) usually have some orange on the belly, which is extremely rare in males. They can be kept in a 24-inch aquarium in a pinch, though a 30- to 36-inch-long aquarium is better. They will do well in any but very acidic conditions, are satisfied with a few caves as décor and will generally breed, even if their diet is no more adventurous than dried food.
In the 5th and final part of my betta fish series, I will be sharing on breeding betta fish.
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An underwater mountain off Puerto Rico’s western coast is a mecca for diverse groups of breeding fish. Some make an epic journey, traveling hundreds of miles to get to . The flattened peak and its coral-rich slopes rise from the deep ocean floor to within human diving limits of 70 to 200 feet. The rich environment is home to threatened corals and hosts breeding humpback whales. And for many fish species, it’s akin to a romantic city that provides the perfect backdrop for courting. When the tank is ready, you have to choose a pair of fish for breeding.
Photo provided by Flickrenvironment. To most easily breed any of the fish found at this site, you will need to provide:
Photo provided by FlickrLastly, keep in mind that most fish breed consistently when they are healthy, of breeding age,
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Disclaimer: This document is intended to familiarize the reader withdifferent methods that fish use to breed and introduce terminology. Anyone who wants to breed a given species of fish should check specificor books to find out aboutthe particular species that they want to raise.A more extreme version of guarding is practiced by some Tanganyikancichlids. There, older siblings will stay around the nest and help theparents defend subsequent spawns. The babies are allowed to stay untilbreeding age, when they are driven off. The most common way to keep eggs from being eatenis to use a separate breeding tank. Therethe parents can spawn or give birth to their young, and be removed oncethey are done. Egg scatterers can be placed over a piece of netting, agrate, or a bed of marbles to protect the eggs as the fish spawn. Bubblenest breeders and mouthbrooders can be left in the tank until theystop caring for the young. Livebearers can be allowed to give birth in adense thicket of plants or plastic spawning grass, so the babies can hideuntil the mother is done giving birth and is removed.A few fish ignore their eggs or fry, and so can be bred in a species tank. White cloud minnows can breed this way, and many killifish will at least ignore the eggs. Baby killies are fair game, though. Guppies will also often ignore babies.Another solution is to allow fish to breed on yarn mops, a plant, or apiece of slate or glass in the community tank. The eggs can then be movedto the breeding tank to grow. This works well for angelfish, catfish, andAustralian rainbowfish. Killifish eggs can be collected from peat or yarnmops and set in a separate container or dried to incubate. Livebearerscan be bred in a commercial breeding trap or breeding net within acommunity tank. The trap separates the babies from the mothers and thengives the babies a safe place to grow.A breeding tank also is good because it can be kept clean. Eggs and fryneed very clean water to hatch and grow. There are also no adults aroundto compete with the babies for food. Many breeders use a bare tank withonly a sponge filter as filtration. Debris and extra food are easily seenand siphoned off daily. Frequent water changes can be done on the tank,as there are no other fish around to stress.If you insist on breeding saleable fish, try rare catfish, rare rainbows,African cichlids, show quality fancy guppies, or marine fish. Those areall difficult for stores to obtain. To make money selling more commonfish like angels, barbs, tetras, cory cats or livebearers (other thanguppies), you need many breeding tanks and breeding pairs of fish toassure a constant supply. You must also have fish of consistent quality.