Need Help sexing this Betta

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Splendorfish

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Hey everyone. So this betta is one that i bought as a very young juvenile and raised. He/she is about 4.5 months old now, and I can't tell if it is a boy or girl! I first had it pegged as a male because it was really aggressive when I put a mirror in it's tank, but recently I decided I was wrong because I thought I could see an egg spot. Now he/she is blowing a bubble nest in it's tank! Can anyone tell from this info and mediocre pics if this is a him or a her betta?
 

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CichlidsYay

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Usually females don't blow bubble nests, but there has been a few cases of it happening.
 
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Lucy

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Several of our feisty fems on the forum have blown bubble nests. Mine included.
I'm definitely not an expert on sexing bettas but to me, that looks like a male.
Can you see if there's a white spot on it's belly? That usually indicates a female.
 
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Splendorfish

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I don't think he? has one, its hard to tell because he usually has his ventrals covering it up and his belly is white, but I ma thinking he is male
 

CichlidsYay

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Try looking for the eggspot when you feed..uh.. your Potential Girl/Guy
 

JRDroid

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To me, it looks like a halfmoon female.
 
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Lucy

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Monmouth said:
To me, it looks like a halfmoon female.
Yeah? lol. I definitely am not one for sexing but remember, this betta is a youngster.

Splendorfish, why don't/didn't you ask the seller?
 
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Splendorfish

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Well, Right now I have no way of contacting the seller. I can't find them in aquabid where I got the fish because they hardly ever sell their fish and I have already deleted the emails. But I don't think the seller new for sure, they were only 8 weeks when I got them.

Oh, and I think that his tail has still been growing. I agree it looks like either a really nice half moon female or a juvenile male, but I am leaning toward male cuz he has been making his bubble nest bigger all day
 

JRDroid

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Lucy said:
Yeah? lol. I definitely am not one for sexing but remember, this betta is a youngster.

Splendorfish, why don't/didn't you ask the seller?
Ya, and I'm not sure when bettas tails fully grow in. I thought I remembered being told the ones in pet stores are around 6 months.
 
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Splendorfish

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It depends on the water conditions and what you are feeding them. Six months is on the early end if you keep them in good water conditions and feed them something that is high in protein like baby brine shrimp.
 

Tigerfishy

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You can shine a light on your fish, I have heard this helps to identify an egg spot if there is one...
 

Shawnie

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looks like a very handsome man to me
 

Deeps

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Looks to me like a male delta tail..
 

Martinismommy

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That's a male for sure...It is a VERY nice young red boy....Where did you find him?
 
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