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You can sex a swordtail at 6 weeks or whenever it is large enough for you to clearly see it's anal fin. The anal fin is the fin on the bottom side of the fish closest to the tail.
Males will have a gonopodium, which means the fin is shaped more like a rod or a spear. Males will also start developing their namesake "swords" on the bottom edge of the tail fin at about this time.
Females will have a normal anal fin, which is shaped more like a fan. Bigger dominate males can take a very long time to develope. These early developing males should never be used for breeding unless they have a useful color varient. Males and females should be seperated as soon as the gonopodium is visable.
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∙ 10y ago
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Can you keep neon tetras with swordtails while you are breeding them?
Baby fish are tiny and will usually be eaten if they are left with larger fish. Swordtails will eat their young and adult neon tetras will also eat baby swordtails. You won't be breeding neons.
What fish are compatible with guppies other than mollies and platys?
swordtails
What type of fish give brith?
guppies, mollies, platies, swordtails, and limias
What are the top10 fish for aquarium?
Angelfish Discus Koi Neon tetra Guppies Paradise fish Swordtails Gouramis Barbs Betta fish
Are all fish are oviparous?
No. There are actually several kinds of fish who have live births, such as guppies, mollies, swordtails, and platies.
How does a sword tail fish breathe?
Through its gills.
What type fish needs a cave in there tank?
swordtails , they get scared of things walking by so they need somewhere to hide
Are rosy red fish livebearers?
There are fish that are a "rosy red" colour that are livebearers. There are both Platties and Swordtails that can have such colouring. But if you are referring to a fish that is called a "Rosy Red Barb" then these are egg layers.
How are fish birthed?
It depends on the fish . Most lay eggs, others, like some sharks and some aquarium fish (guppies, mollies, platies and swordtails). have live births.
Can fish breed?
yep if you want to breed fish then don't try bettas because the fight to much. but if you do want to breed fish then id breed either swordtails mollies or guppies
Why is your Mickey Mouse fish fighting?
Male Platys (and Swordtails) are notoriously bad tempered fish and often fight and bully one another. That is simply part of their nature.
What small breed of fish are generally used as feeder fish?
Guppies, mollies, platies, swordtails, ghost shrimp (though not a fish) and comets (though they aren't a small breed) are the most common types.
