Freshwater Fish

Demasoni Cichlid

Pseudotropheus demasoni

Care guide, husbandry, breeding, disease, and sourcing intelligence on Demasoni Cichlid - written by the Fast Aquatics editorial team.

Demasoni Cichlid at a glance
Adult size: 3 inches · Min tank/pond: 55 gallons · Difficulty: intermediate · Diet: herbivore · Lifespan: 8-10 years.

Demasoni Cichlid (Pseudotropheus demasoni) is a popular freshwater fish in the aquarium and pond hobby. Suitable for keepers with 6-12 months of stable-tank experience.

Where Demasoni Cichlid comes from

Demasoni Cichlid (Pseudotropheus demasoni) is native to specific tropical and subtropical freshwater systems. Captive-bred specimens at most LFS come from generations of farmed stock and are generally hardier and more colorful than wild-caught equivalents.

Demasoni Cichlid tank size and setup

Demasoni Cichlid requires a minimum of 55 gallons for healthy adults. The minimum is based on 3 inches adult size and territorial range. Plan a tank sized for adult footprint, HOB or canister filter rated 4-6x volume, dechlorinated water, appropriate temperature heater, and stocking-appropriate hardscape.

Water parameters for Demasoni Cichlid

Demasoni Cichlid prefers freshwater parameters: temperature 74-80°F, pH 6.5-7.5, GH 4-12 dGH, KH 3-8 dKH, ammonia + nitrite 0 ppm, nitrate under 20 ppm. Use dechlorinator on every water change.

What Demasoni Cichlid eats

Demasoni Cichlid is a herbivore. Provide algae sheets, algae-based pellets, and supplemental veggies. Skip a feeding day per week for tank biology. Browse our food guides for product recommendations.

Demasoni Cichlid tankmates and compatibility

Demasoni Cichlid works in community tanks with peaceful species in similar size class. Avoid mixing aggressive with passive species.

Demasoni Cichlid adult size and lifespan

Demasoni Cichlid reaches 3 inches at adulthood with a captive lifespan of 8-10 years with proper care.

Can you breed Demasoni Cichlid?

Demasoni Cichlid can be bred in dedicated breeding tanks with appropriate setup and water-chemistry triggers. Research the species-specific breeding requirements before attempting.

Common Demasoni Cichlid diseases and problems

Demasoni Cichlid is susceptible to standard freshwater diseases (ich, columnaris, fin rot, bacterial infections). Quarantine new Demasoni Cichlid for 4 weeks before adding to display.

Where to buy Demasoni Cichlid online

Demasoni Cichlid is sold at LFS, online retailers, and direct from breeders. Browse live Demasoni Cichlid from vetted Fast Aquatics vendors with carrier-tracked overnight shipping, climate-aware hold logic, and a 4-hour DOA window with photo-evidence claims.

Other species in the same category with care profiles on Fast Aquatics. Click any name for the full husbandry breakdown.

Altolamprologus CompressicepsKing Tiger PlecoFlame Dwarf GouramiKing Tiger PlecoReticulated Hillstream LoachGhost Discus

Sources and references

Demasoni Cichlid taxonomy and care recommendations cross-checked against the following authoritative references and our internal vendor + breeder database.

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More resources for Demasoni Cichlid keepers

Common diseases
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Browse the full disease database, calculator collection, aquarium glossary, or Q&A library for additional reference.

Deep-dive Q&A on Demasoni Cichlid

Answers to the questions experienced keepers ask after the basic care guide.

How long does Demasoni Cichlid take to acclimate to a new tank?

Drip acclimation over 60 to 90 minutes is the safest approach for Demasoni Cichlid. Match temperature first (15 minute float), then drip 2 to 3 drops per second from the display sump until the bag volume has tripled. Test salinity (or freshwater hardness) at the end - if it is within 0.001 SG (or 2 dGH) of the display, transfer the specimen with a net rather than pouring shipping water in.

What is the best filtration setup for Demasoni Cichlid?

Aim for biological + mechanical + chemical staging. Canister or sump-driven filtration sized for 5x to 8x display turnover per hour, mechanical floss replaced weekly, and carbon or GAC swapped every 4 to 6 weeks. Demasoni Cichlid responds well to stable nitrate (under 20 ppm) more than to any specific filter brand - stability beats peak performance.

Does Demasoni Cichlid need a protein skimmer?

For saltwater specimens, yes - a properly-sized skimmer rated for 1.5x to 2x display volume keeps dissolved organics low and reduces nuisance-algae triggers. Freshwater specimens do not need skimmers; a well-stocked plant grow-out + canister with chemical media achieves the same end. Demasoni Cichlid kept without adequate organic export tends to show stress within 90 days.

Can Demasoni Cichlid be kept in a planted tank?

Compatibility with planted tanks depends on the species behavior + water chemistry overlap. Plant-safe specimens leave foliage alone; some pick at soft-tissue plants like vallisneria or anubias. Check the species page profile + the planted-tank compatibility note before stocking Demasoni Cichlid in a high-tech CO2-injected setup with valuable cultivars.

What is the ideal lighting for Demasoni Cichlid?

For freshwater specimens with no plant requirements, a basic LED at 30 to 50 PAR at substrate is sufficient and reduces algae. For saltwater + reef specimens, target 100 to 250 PAR depending on photo-tolerance, with a sunrise/sunset ramp + a 8 to 10 hour photoperiod. Demasoni Cichlid tolerates a wider lighting band than most keepers expect; consistency matters more than peak intensity.

Does Demasoni Cichlid prefer high or low water flow?

Most aquarium species evolved in moderate flow with localized turbulence rather than uniform high flow. Aim for 20x to 40x display turnover for reef specimens, 4x to 6x for community freshwater. Demasoni Cichlid shows stress fins (clamped, frayed) when flow is mismatched - dial back if you see this within 14 days of introduction.

What temperature shift will stress Demasoni Cichlid?

Sustained drift above +/- 2 F from target is the threshold most keepers miss. Demasoni Cichlid tolerates day-night swings of 1 to 2 F without issue but a 4 F shift over 2 hours triggers ich + bacterial bloom risk. Use a controller-driven heater (not the built-in dial) and a backup thermometer at the opposite end of the tank.

What are the top 3 diseases that hit Demasoni Cichlid the most?

For freshwater fish: ich, columnaris, and fin rot are the top three; quarantine + UV sterilizer prevents the majority. For marine fish: ich (Cryptocaryon), velvet (Amyloodinium), and bacterial infections; tank-transfer method or copper QT during the 30-day acclimation cycle prevents nearly all outbreaks. For inverts + corals: tissue necrosis, parasitic isopods, and protozoan blooms.

Can Demasoni Cichlid be bred in captivity?

Captive breeding success varies enormously by species - some breed readily in community tanks (livebearers, cherry shrimp, clownfish) while others have never been captive-bred (most reef fish + most marine inverts). Check the species-specific care guide for the breeding-method note + larval-rearing protocol. Demasoni Cichlid kept in pairs or small groups often spawns even without intent if conditions are right.

What are the best tankmates to avoid for Demasoni Cichlid?

Avoid same-species rivals (especially male-male pairings for territorial species), known fin-nippers (tiger barbs, certain pufferfish), and anything that out-competes for food or out-grows the tank. Demasoni Cichlid also struggles with hyper-aggressive cichlids in freshwater and damselfish in saltwater - both will hold territory at the expense of every other tankmate.

Is Demasoni Cichlid safe to keep with cleaner shrimp or cleaner wrasses?

Most ornamental specimens accept cleaner shrimp + cleaner gobies; cleaner wrasses (Labroides) often die in captivity and are not recommended. Demasoni Cichlid kept with cleaner pairs typically benefits from parasite control + stress reduction, but verify the cleaner does not get eaten by checking the species size + temperament chart.

What is the realistic lifespan of Demasoni Cichlid with proper care?

Captive lifespan tracks closely to wild lifespan when water chemistry, diet, and tankmate stress are managed. Most aquarium fish live 5 to 12 years; long-lived species (large cichlids, pufferfish, some tangs) reach 15+ years. Demasoni Cichlid kept in a stable, properly-sized system should live within 80% to 100% of the species lifespan ceiling - early death usually traces back to chronic-stress causes (parameters, tankmates, diet) rather than disease.