Terms of the hobby

Flowerhorn glossary

The flowerhorn world has its own vocabulary, borrowed from Malay, Chinese, Thai and English. Here is what the words mean.

Culling
Removing fry that don’t show desirable traits during grading. Responsible breeders sell culls as pet-grade fish. See breeding.
Divider breeding
Separating a potential pair with a clear or mesh partition so they can see each other without fighting, until both are ready to spawn.
F0, F1, F2, F3, F4
Generation labels, mostly used for Kamfa. F0 is the original cross, F1 its offspring and so on. Not strain names. Later generations are generally more fertile and less pure.
Faders
Golden Base flowerhorns that are born dark and gradually lose their black coloring to reveal gold, yellow or orange.
Flower
The row of black blotches running along the side of a flowerhorn. Its shape, thickness and continuity are graded, and in feng shui the pattern may be read as characters or numbers.
Golden Base / Golden Monkey
One of the founding flowerhorn lines, known for gold and yellow color. A hardy, affordable choice.
Grading
Sorting young fish by quality, repeatedly, as they grow. The main criteria are kok, flower, pearling, color, body shape and eyes.
Hard head
A firm kok built from fatty tissue, typical of Zhen Zhu lines. Tends to hold its shape.
Hua luo han 花羅漢
The Chinese name for the flowerhorn: “flower luohan.” Often shortened to luohan or louhan.
Kamfa
A prized strain with a square body, very large kok, heavy pearling and often a sunken eye, developed by crossing flowerhorns with Vieja cichlids. Sometimes spelled Kam Fa.
Kok
The hump on a flowerhorn’s forehead; the scientific term is nuchal hump. Usually develops between 6 and 12 months. Its size is the single biggest factor in a fish’s value and feng shui significance.
Luohan 羅漢
The Chinese term for an arhat, an enlightened Buddhist saint, and a common shorthand for the flowerhorn.
Pearling
Iridescent white or blue-green spangles on the scales, fins and face. Heavy, even pearling is a mark of quality, especially in Zhen Zhu and Kamfa.
Red Dragon / SRD
Lines bred for solid red coverage. SRD stands for Super Red Dragon, the most saturated grade.
Short body
A flowerhorn with a compressed, rounded body, also called balloon. Popular but prone to swim bladder problems.
Thai Silk
A Thai-developed line with a metallic white to silver-blue sheen, sometimes sold as Titanium.
Water head
A large, softer kok filled more with fluid than fat, typical of Kamfa. Can look spectacular but may shrink with stress or age.
Wet pet
Hobby slang for large, interactive fish, cichlids especially, that behave more like pets than ornaments. See the fish that acts like a dog.
Zhen Zhu (ZZ)
“Pearl” in Chinese. One of the founding flowerhorn lines, known for heavy pearling and a firm kok.