Basics on breeding some of the more commonly bred tropical fish

Breeding techniques of some of the more common saltwater aquarium fish
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When we hear the word “clownfish” in any context, it’s the image of this fish (below) that comes to mind 99.9 percent of the time. Martin Moe, the father of commercial marine ornamental aquaculture, was the first person to reliably breed these captivating fish in 1972. This is both the most popular clownfish—and fish overall—in the world of CB marine organisms, and it will likely remain a staple in the trade, as it is the poster fish for the marine aquarium hobby. Wild-type coloration is still the norm, but the appearance of new designer varieties is changing our idea of what a normal ocellaris looks like. Snowflake and Black Ice and DaVinci color morphs are now all popular terms in the trade, and they refer to an ever-expanding range of clownfish that still fall into the ocellaris category but seem to look less like the species holotype with every new iteration.
The Longnose Hawkfish is also the only one we know of to have been bred in captivity.
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A strain is a more specific subset within a particular breed. Strains can get as narrowly defined as all coming from one individual parent fish. Strains can also differ by country of origin and by breeder. The Shortfin Lionfish is the most often reported as having bred in captivity.
Photo provided by FlickrDEMONSTRATING THE BREEDING OF FISH: Lomai Simo, 55, from the village of Manunu shows how the church breeds fish for the people
Photo provided by Flickrto breed paradise fish all i do is turn the filter off and they breed everytime without a doubt! ive lost count how much iv bred them
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Oh, it is. Late spring to early summer is a fantastic time to get your pond fish to breed. Now, if you’re looking to seriously breed quality koi, there are a thousand articles of varying quality that can help you with that. If you’re a pond owner who just wants your koi or other fish to breed for the joy of baby fish and the satisfaction of having fish that have lived their entire lives in your pond, there are a few things that you can do to set the mood and get your little swimmers going.The common Black Molly is a livebearing fish that is fairly easy to breed. I had a 20 gal. tank set up for my breeding mollies and started with about 4 of them. After a couple years, I was giving them away and selling to local aquarium shops, I had so many. There was a constant supply of breeding mollies and young, growing fish in one tank (photo below). They are a fun fish to watch and will happily breed if you give them the right conditions. Let's find out how.We all remember high school, when the new girl or guy would come around. Everyone wants the new girl. Well, fish are a lot like high schoolers (if smarter). Timely introduction of new fish from outside is a great way to get your fish in the mood for love, or at least its fishier equivalent. It’s also a good way to ensure stronger, more varied material in your pond’s gene pool. If you’re not looking for specific breeds of koi, hybrid vigor is a very good thing in your pond.STOCK YOUR TANK -- Once the tank is stable and aged, introduce about 4 to 6 mollies of your choice. Stick with common black or marble mollies to start -- these are the easiest to breed. Make sure you get a mix of males and females - two males and four females is a good balance. Do not put any other fish species in the tank if your intent is breeding. If you want a community tank, the you can add guppies, swordtails and maybe gobies to the tank, but the baby mollies may not survive as well.SET UP TANK -- When breeding mollies, water conditions is important. Mollies live in estuaries in Central America, which are are a mix of ocean and freshwater (brackish), so try to set up your tank like a Estuary/Mangrove Biotope. My tank had about 1/2 teaspoon salt per gallon (you want about 1.005 to 1.008 salinity) and temperature around 78F-82F. Plants are not important, but Java Fern will grow in this water. Put several pieces of driftwood on the bottom where the baby fish will hide and eat. Let the water stabilize for a couple weeks to start the good bacteria colonies. You also want plenty of algae growing for molly food, so leave a light on.CONDITION THE FISH -- Mollies generally are vegetarian and eat algae and other plant matter, and flake foods. But to get them in breeding condition, I added newly hatched brine shrimp and white worms to their diet. Keep the breeding mollies fat without overfeeding and fouling the water. Change about 10-20% of the water weekly, remembering to add about 1/2 tsp of salt per gallon to the water you're adding. I just used our tap water, which was very hard water (from a private drilled well).