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Demasoni Cichlid

Chindongo demasoni

Cichlidae

FishDifficulty: ●●●●Data: well-established
Demasoni Cichlid — Chindongo demasoni
📷 Mario Rubio García · CC BY 2.0 · resized · Wikimedia Commons

About

The demasoni cichlid is a dwarf mbuna from the rocky reefs of Pombo Rocks in Lake Malawi, instantly recognised by its electric-blue body crossed with bold black vertical bars. Barely reaching 7-8 cm, it packs the aggression of a fish many times its size and is relentlessly territorial toward its own kind, so it succeeds only in a large tank kept in hard, alkaline Rift Lake water among dense rockwork.

Care

Keep in hard, alkaline water (pH 7.8-8.5) over sand with heavy rockwork in a tank of 200 L or more. Extremely aggressive to its own kind, so keep either a large colony of 12+ to spread out aggression or none at all; not for community tanks.

Diet

Herbivorous aufwuchs grazer; feed spirulina- and vegetable-based foods with blanched greens. Strictly limit protein-rich foods to prevent Malawi bloat.

Tankmate compatibility

Possible with care (150)

Acei CichlidAgassiz's CoryAmano ShrimpAssassin SnailAuratus CichlidBamboo ShrimpBanjo CatfishBetta (Siamese Fighting Fish)Bladder SnailBlood Parrot CichlidBloodfin TetraBlue AcaraBlue Dolphin CichlidBlue Velvet ShrimpBoesemani RainbowfishBolivian RamBorleyi (Redfin Hap)Brevis Shell DwellerBrichard's TeleogrammaBrichardi (Fairy Cichlid)Bristlenose PlecoBronze CorydorasBuenos Aires TetraBuffalohead CichlidBumblebee CichlidBumblebee GobyButterfly Hillstream LoachCalvus CichlidCelebes RainbowfishCherry ShrimpChinese Algae EaterClown PlecoCobalt Blue ZebraColombian Ramshorn SnailCompressiceps CichlidConvict CichlidCuckoo CatfishCylindricus CichlidCyprichromisDenison BarbDoctor FishDogtooth CichlidDojo (Weather) LoachDuboisi TropheusDwarf Chain LoachDwarf Neon RainbowfishDwarf Orange CrayfishDwarf Pea PufferDwarf Petricola CatfishElectric Blue AhliElectric Yellow LabEllioti CichlidElongate MbunaEmerald CoryEndler's LivebearerEven-spotted SynodontisFestivum (Flag Cichlid)Figure-8 PufferFiremouth CichlidFive-bar CichlidFlame TetraForktail RainbowfishFreshwater ClamGhost ShrimpGlowlight DanioGoby CichlidGold BarbGolden Dwarf CichlidGolden JulieGolden PencilfishGolden Wonder KillifishGuppyHongi CichlidJack DempseyJapanese Trapdoor SnailJewel CichlidJohanni CichlidKenyi CichlidKissing GouramiLeast KillifishLemon CichlidLeopard DanioMaingano CichlidMalaysian Trumpet SnailMarlieri CichlidMasked JulieMedaka RicefishMollyMultifasciatus Shell DwellerMystery SnailNerite SnailOcellatus Shell DwellerOdessa BarbParadise FishParaguay EartheaterPeacock CichlidPearl DanioPenguin TetraPeppered CorydorasPictus CatfishPlatyPort CichlidPowder Blue CichlidRabbit SnailRainbow CichlidRainbow SharkRamshorn SnailRed EmpressRed RainbowfishRed Zebra CichlidRed-Tail SharkRedhead CichlidRegan's JulieRosy BarbRubber Lip PlecoRusty CichlidSailfin MollySalt and Pepper CorySalvini CichlidSand-sifting XenotilapiaSaulosi CichlidScarlet BadisScissortail RasboraSiamese Algae EaterSilver Tip TetraSimilis Shell DwellerSpotted HoploStar SapphireSulawesi Cardinal ShrimpSunshine PeacockSwordtailT-Bar CichlidTaiwan Reef CichlidThreadfin AcaraThreadfin PetrochromisThreadfin RainbowfishThree-spot GouramiTiger BarbTropheusTurquoise RainbowfishUmbrella Dwarf CichlidUpside-down CatfishVampire ShrimpVenezuelan CoryWhite Cloud Mountain MinnowWrestling HalfbeakX-ray TetraYoyo LoachZebra DanioZebra Mbuna

Avoid (121)

Adonis PlecoAfrican Butterfly CichlidAfrican ButterflyfishAgassiz's Dwarf CichlidAltum AngelfishAngelfishBala SharkBlack Moor GoldfishBlack Neon TetraBlack Phantom TetraBlack Ruby BarbBlack Skirt TetraBlackline RasboraBleeding Heart TetraBlue Tiger ShrimpBorneo SuckerCardinal TetraCelestial Pearl DanioCheckerboard CichlidCheckered BarbCherry BarbChili RasboraChocolate CichlidChocolate GouramiClown KillifishClown LoachCochu's Blue TetraCockatoo Dwarf CichlidComet GoldfishCommon GoldfishCommon PlecoCongo Dwarf CichlidCongo TetraCrystal Red ShrimpDemon EartheaterDiamond TetraDiscusDwarf Flag CichlidDwarf GouramiDwarf RasboraElephantnose FishEmber TetraEmperor TetraEndlicheri BichirFantail GoldfishFeatherfin SqueakerFrontosaGerman Blue RamGlass CatfishGlowlight TetraGolden TetraGreen DiscusGreen Neon TetraGreen Spotted PufferfishGreen TerrorHarlequin RasboraHead-and-Tail-Light TetraHeckel DiscusHoney GouramiIridescent SharkJaguar CichlidJulii CoryKeyhole CichlidKoiKribensisKuhli LoachLambchop RasboraLemon TetraLittle CorydorasLivingstoniMacmasteri Dwarf CichlidMalawi EyebiterMalawi HawkMarble HatchetfishMoonlight GouramiNeon TetraOranda GoldfishOrnate BichirOscarOtocinclusPanda CorydorasPeaceful BettaPeacock BassPearl GouramiPike CichlidPolka Dot LoachPurple Emperor TetraPygmy CorydorasRanchu GoldfishRed DevilRed TerrorRed Whiptail CatfishReticulated Flying FoxReticulated Hillstream LoachRostratusRosy Red MinnowRosy TetraRoyal PlecoRummynose TetraRyukin GoldfishSailfin PlecoSerpae TetraSeverumShubunkin GoldfishSilver ArowanaSilver MoonySkunk CorySparkling GouramiSterbai CorydorasStrawberry RasboraStriped KribensisStriped Raphael CatfishSveni EartheaterTelescope GoldfishTexas CichlidThai Micro CrabThick-lipped GouramiUaru (Triangle Cichlid)Venustus (Giraffe Cichlid)Wolf CichlidZebra Pleco

Computed by the AquaSage engine for a spacious reference tank — always check the full verdict for your exact setup in the calculator.

Telling males from females

What works for this species, most reliable first.

  • VentingStrong · only on a mature fish, easiest when she is in breeding condition

    The method breeders use when the answer has to be right. Hold the fish upside down in a wet hand or soft net and look at the two openings ahead of the anal fin. The forward one is the anus; the one behind it is what you are reading.

  • Egg spotsA hint only · from about 6 months

    The yellow or orange ocelli on the anal fin of Malawi cichlids, traditionally explained as a lure that draws the female into mouthing them, fertilising the eggs she is already holding.

  • Adult sizeA hint only · only across animals of the same age

    In many cichlids, catfish and loaches one sex simply grows larger — usually the male, though there are well-known reversals.

All the methods, with diagrams

Also in these lists

Frequently asked questions

What tank size does a Demasoni Cichlid need?
A Demasoni Cichlid needs an aquarium of at least 200 litres (52.8 US gallons) with a footprint at least 120 cm (47.2 in) long — for this species, swimming length matters as much as raw volume.
What water parameters does a Demasoni Cichlid need?
Demasoni Cichlid does best at 23–28 °C (73.4–82.4 °F), pH 7.5–8.8 and a general hardness of 10–25 °dGH.
What group size does a Demasoni Cichlid need?
Demasoni Cichlid is a social species — keep a group of at least 12 so natural behaviour emerges and stress stays low.
Is the Demasoni Cichlid suitable for beginners?
Demasoni Cichlid is a demanding species best attempted with some experience — it needs stable, closely watched conditions to thrive.

Sources

Water & tank

Temperature23–28°C
Optimal temp.25–27°C
pH7.5–8.8
Hardness (GH)10–25°d
Carbonate (KH)6–18°d
Adult size8 cm
Min. volume≥ 200 L
Min. tank length≥ 120 cm
Group size≥ 12
Swimming zoneAll levels
TemperamentAggressive
Water typeFreshwater
FlowModerate
Lifespan~10 yrs
Try in the calculator