Simply Sexing: Tiger Barbs: How to Tell Male From Females For Breeding
You might want to know the gender of your Tiger Barb because you want to breed your fish. Or maybe you just want to know the balance in your group. Either way, Tiger Barb can be sexed reliably from about 4 months of age. At this time, they should be starting to develop their adult colors.
They won’t be fully grown yet. They’ll be at least a third of their body weight. But they can still be sexed from this age because Tiger Barb start laying eggs long before they reach their full size. Females will start to lay eggs from around 1-1.5 inches in length.
Though probably, they will be grow up to 3-incehs in length, which is another characteristic worth noting if you are want breed them. It might be worth holding on for a little bit because larger females do produce more eggs.
In terms of appearance, the male Tiger Barb has the classic Barb shape. They are stocky and streamlined at the same time. They have a smooth line that runs between the tip of their snout, right up to the dorsal fin. They can also display a broad range of deep reds and subtle oranges.
However, males are always more colorful than females. They have a solid red border to their dorsal fin, a much brighter red nose, and red-marking along their chordal fins.
Females vs. Males
Females tend to develop a slightly more pitched appearance as they have a much sharper snout. This is combined with a full abdomen and a slightly higher back. They have very similar markings compared to the males. But they are more subdued.
By far, the easiest way to recognize a female is by her abdomen. Tiger barbs don’t lay eggs every day. The female will slowly fill up with eggs until she’s ready to do so. This enlargement of her abdomen is the easiest way to identify her as it’s only present on females.
As she gets closer to laying eggs, you’ll start to see a darkened patch at the back of their abdomen as well. This is where the eggs are quite literally moving her scales as she gets wider. So, eventually, you can see them through her skin just at the back.
Once she has laid eggs, she’ll get a little bit smaller. But she’ll never be as slim as one of the males. She’ll always have a slightly more pronounced abdomen.
Behavior
Behavior-wise, males are markedly more aggressive than the females and much more likely to squabble and nip at each other. They’ll also chase other fish around a little bit. This tends to be fairly harmless, and they’re just showing off without doing any real noting.
This is particularly true where there are females who are looking to lay eggs, usually just after a big meal in the evening rather than a dor, which is more common for other species. Females do have a boisterous streak in them that many barbs do, but they don’t chase nip nearly as much the males.
Conclusion
While Tiger Barbs can look the same when you look at a group of them. But if you know what to look for and your fish are old enough, then telling the sexes apart is relatively easy.