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Sexing Method
1. Distinctive black marking on the dorsal fin indicates that it is a female. However, this is not foolproof. The same pattern does exist on some male Flowerhorns.
2. Observations on the shape of the genital papillae. V-shaped papilla indicates a male fish, while a U-shaped papilla indicates a female fish. Gently squeezing the abdominal region may reveal the papillae.
3. Male Flowerhorns will have broader body with higher dorsal, anal and caudal fins. It is also observed that male Flowerhorns will have thicker jawline and more distinctive body color.
#Age and length
5 months and above
(150 mm - 600 mm)
#Characteristic
Flowerhorns begin to mature. Distinctive and rather prominent head humps are visible on the male fish.
#Sexing Method
Female will start to lay eggs even without the presence of a male.
Some more characteristics to be observed.
#1 dorsal black spot:
flowerhorns are hybrids,therefore this method will not be 100%accurate.this method is usally use on pure bred cichlid
however the rest of the method we are going to talk about here will not apply to fries under 3 in therefore this one is included.
90%of fry with out dorsal spots,will be males.
60% of fry with dorsal spot will be females.
#2 body structure.
male flowerhorn often have more angular and muscular lines ,while females often have a rounder,smoother body line.
#3 Dorsal spine method.
look at the first 6 dorsal spines of your fh, males often have rounded and thick spines, while females have a more flatened and thiner look to the first 6 dorsal spines.
#4 pelvic fin and pelvic spine method.
female flowerhorn need to use their pelvic fin as a fan to fan the eggs while breeding,therefore when you touch the pelvic fin and pelvic spine of your fh,if it is soft,and the spine is not as hard that will make you bleed,your fish is highly possible to be a female.
#5 chest line(chin line) method.
if you view your fish from the side,behind the gill jucture and before the pelvic fin,right under the petoral fin,this is the chest of your fish,if your fish have a bulkier chest,the it is more possible to be male,females often have a smaller,and smoother chest(unlike human)...lol
#6 anal venting method.
hold your fish upsidedown,look at the anal vent,males have a V shape and females have a U shape.
now look from the side,males should have their tube pointed toward the back ,while females have straight tubes
Male organism
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Female Organism
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can u help me figure out if it's a boy/girl? the owner, said it was a MALE, but idk, the KOK really isn't that big, so please tell me if you think it's whether a MALE or FEMALE? 
thnx! 
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