Flowerhorns are big, greedy, and genuinely responsive to diet — color, growth rate and condition all shift visibly with what goes in the tank. They are also easy to overfeed into problems. Here is what we have learned feeding them across two stores and our own tanks.
The staple should be a quality pellet
A flowerhorn's daily food should be a high-protein sinking or slow-sinking cichlid pellet sized to the fish. Hikari's cichlid lines and carnivore sticks are what most serious keepers here run, and the reason is consistency: a good pellet gives you a known protein level, a known carotenoid content, and no pathogen risk. Everything else on this page is a supplement to that, not a replacement for it.
Color: astaxanthin, and patience
The reds and oranges on a flowerhorn are carotenoid pigments the fish cannot synthesize — it has to eat them. Foods containing astaxanthin, krill, shrimp meal or spirulina feed that color; a plain diet lets it fade. Expect changes over weeks, not days, and expect the base genetics to set the ceiling. A quality color food brings a fish up to what it is capable of. It does not make it something it is not.
A straight answer about kok products
The nuchal hump is mostly genetics. A fish from a line that grows a big kok will grow one on good food and good water; a fish from a line that does not, will not, regardless of what you pour in. Conditioning food, high protein and clean warm water let the genetic potential express fully — that is real, and it is worth doing. Products promising to grow a kok on a fish that lacks the genetics for it are selling hope. We stock the conditioning and vitamin supplements because they do help a good fish look its best, and we would rather say plainly what they can and cannot do.
Live and frozen foods
Live California blackworms are the best conditioning food we sell, and flowerhorns go after them hard. Rinse them in cold water daily, keep them refrigerated in a shallow tray with a little water, and feed them as a treat a couple of times a week rather than as a staple.
Frozen bloodworm, krill and dried shrimp round out variety. Feed dried shrimp sparingly — they are rich, and they are more of a treat than a meal.
Skip the feeder goldfish
This comes up constantly, so: live feeder goldfish and rosy reds are a bad staple. They carry thiaminase, an enzyme that destroys vitamin B1, and a diet built on them produces thiamine deficiency over months — poor growth, neurological signs, faded color. They are also the most common route for introducing disease into an otherwise clean tank. If you want to feed live for enrichment, blackworms and earthworms do the job without either problem.
How much, how often
Juveniles: small amounts two to three times a day, grown fast on frequent feeds. Adults: once or twice a day, and less than they will happily accept. A flowerhorn will beg forever and will eat itself into bloat and fatty liver given the chance. Feed what is consumed in a minute or two, and take out anything left. One fast day a week does no harm.
About the antibiotic products
We stock the imported flowerhorn antibiotic and bacterial treatments because the breeder community asks for them, and they have a place when you are treating a diagnosed bacterial infection. They are not a preventative and should not go into the tank on a schedule. Routine antibiotic dosing wrecks your biological filter, breeds resistance, and masks the water quality problem that is usually the real cause. If a fish is sick, bring us a water sample and a description first — most of what looks like infection is a parameter problem.
Ask us what to feed yours
Bring a photo of your fish and tell us its size and what it is on now. Both stores test water for free, and the Convoy team keeps flowerhorns themselves. More on strains, kok development and housing on our flowerhorn cichlids page and at Flowerhorn.Co.
