Electric Blue Ram
Mikrogeophagus ramirezi var. Electric Blue
The Electric Blue Ram exhibits a dazzling metallic cyan blue coloration, the result of a genetic mutation isolated in Asian breeding facilities. This visual marvel is, unfortunately, accompanied by genetics devastated by extreme inbreeding. It is a very fragile fish, with a dramatically short life expectancy in amateur tanks. To survive, it demands clinical conditions: constant 28-30°C, RO water acidified with peat (NO tap water), frozen or live food, and the total absence of aggressive or fast fish.
Water Temperature
27 - 30 °C
pH Value
5.5 - 6.8
Water type
Freshwater
Tank level
Bottom and middle
Adult size
7 cm
Minimum tank volume
>= 60 L
Minimum group
>= 2
GH
1 - 5 dGH
KH
1 - 2 dKH
TDS
25 - 95 ppm
Conductivity
39 - 148 uS/cm
Species description
Geographical Origin and Habitat: Artificial breeding mutation (Line-bred morph). Does not exist in nature, but derives from the Orinoco basin strain (Venezuela/Colombia).
Taxonomy and Morphology: Electric Blue Ram (Mikrogeophagus ramirezi mutation). Has the exact same morphology as the classic Ramirezi: a compact dwarf cichlid. However, this variant often shows slight skull deformities or gill defects due to intense inbreeding.
Social Behavior: Forms pairs (if partners tolerate each other). Like all Ramirezis, it is peaceful towards other species but fiercely territorial towards the bottom during spawning.
Coloration and Sexual Dimorphism: Solid bright neon Electric Blue variant; devoid of the lateral black spot, black stripes and red belly (which makes it almost impossible to distinguish the sexes with the naked eye). Only the observation of the genital papilla or the slight dorsal point betrays the male.
Care, breeding and tankmates
Aquarium Setup: Requires hiding places and visual barriers (roots, thick vegetation) to relieve stress and strictly fine sand bottom to allow it to sift without injuring its lips.
Diet and Feeding: Picky micropredator. Often reluctant to commercial dry food. Administer mosquito larvae, frozen bloodworms, and brine shrimp to stimulate it. Top quality food is essential for its weak genetics.
Water Quality: Even weaker than the "German Blue". Being a weak artificial mutation, ZERO tolerance for nitrates > 10ppm. Warm (28°C / 82°F) and soft water.
Compatibility and Cohabitation: Excellent with small characins (Neons, Cardinals) of warm and calm waters. Absolutely to avoid impetuous companions (Barbs) or dominant bottom fish.
Aquarium Breeding: Very difficult for the brood to succeed; the reproductive instinct is almost completely inhibited or confused in the "Electric Blue" variants. They often eat the brood repeatedly.
Risks and Diseases: Hexamita and Bloat. Driven color variants are famous for having a zeroed immune system; the Hexamita flagellate will hit them rapidly at the slightest thermal shock or imperfect hygiene.
Geographic Origin and Distribution
Artificial breeding mutation (Line-bred morph). Does not exist in nature, but derives from the Orinoco basin strain (Venezuela/Colombia).
Origin
Selective breeding and cultivarsAmazon, Orinoco, and GuianasTropical oceans and reefs
Fish profile
- Temperament
- Peaceful
- They possess a generally peaceful, somewhat shy, and delicate temperament. While males will establish and defend small territories, their aggression is largely restricted to posturing and short chases. They require a heavily planted aquarium with numerous hiding spots to feel secure and display their best behavior.
- Diet
- Micro-predator
- They are omnivorous micropredators that require a high-quality, varied diet to maintain their stunning blue coloration. Sinking micro-pellets should be supplemented with frequent offerings of frozen or live foods like daphnia, bloodworms, and brine shrimp. Proper nutrition is critical to bolster their often fragile immune systems.
- Life expectancy
- 2-3 years
- Due to genetic breeding lines and the intense inbreeding required to stabilize the mutation, the Electric Blue Ram has a short lifespan of 2 to 3 years in captivity. They are far more fragile than their wild-type counterparts, with a system that is highly sensitive to water quality issues and temperature fluctuations. Providing pristine water conditions and a stress-free environment is essential to help them reach their maximum age.
- Adult size
- 7 cm
- The catalog's scalar value is 7 cm. The FishBase SPECIES table (v25.04 snapshot) source reports a maximum adult measurement of 3.4 cm for this species, recorded as standard length (SL). The biological datum refers to the base species Mikrogeophagus ramirezi (v25.04); male or unsexed record, not exclusively to the commercial variety. These figures are not interchangeable: the first is the profile's editorial reference, whereas the second is a published maximum under a specific measurement convention; differences among sources can reflect sex, population, life stage and measuring method.
- Sex ratio
- Solitary
- Sexing Electric Blue Rams can be more challenging than the wild type as the females lack the distinct pink belly. Keeping a confirmed pair is the ideal scenario, though a single specimen will also thrive. Two males in a small tank will relentlessly harass each other over territorial disputes.
- Feeding frequency
- Twice daily
- Feeding them small amounts twice a day is ideal to ensure they receive sufficient calories. Because they feed slowly and deliberately, it is crucial to observe that they are actually getting food before faster fish consume it all. Target feeding is often necessary when housing them with more aggressive eaters.
- Bioload
- Low
- The Electric Blue Ram, a highly bred color variant, produces a moderate bioload similar to the wild type. Due to extensive line breeding, their genetic hardiness is often compromised, making them hyper-sensitive to any water quality issues. Maintaining absolute pristine water conditions through rigorous maintenance is non-negotiable for their survival.
- Flow
- Stagnant
- They require a calm environment with slow to moderate water movement, mimicking their natural South American origins. Strong water flow will rapidly exhaust these delicate fish and induce severe stress. Utilizing sponge filters or heavily baffling power filter outputs is highly recommended.
- Reproduction
- Oviparous
- They are substrate spawners and form monogamous pairs, although heavily line-bred variants sometimes display poor parenting instincts. If successful, the female lays eggs on a flat surface, and the pair will attempt to defend the site. In many cases, aquarists must artificially hatch and raise the fry as the parents may eat the eggs.
- Compatibility & tankmates
- Species only
- They are peaceful dwarf cichlids best kept in a tranquil community setting with other docile species. Excellent companions include small tetras, pencilfish, and bottom-dwelling corydoras that appreciate warmer water temperatures. They will easily be outcompeted and stressed to death by fast-swimming or aggressive tank mates.
- Tank level
- Middle/Bottom
- They predominantly occupy the bottom and lower-mid levels of the aquarium, frequently hovering just above the substrate. They exhibit the characteristic sifting behavior of Geophagus relatives, taking mouthfuls of sand to extract food. A soft, fine sand substrate is absolutely essential for their well-being.
Scientific Parameters & Models
FishBase
Window to the official scientific data of the species
Data synced on: 06/15/2026
- Trophic level
- 3.1 ± 0.5 se
- Resilience
- High (less than 15 months)
- Phylogenetic uniqueness (PD50)
- 0.75
- Bayesian Length-Weight
- a = 0.01445, b = 3.08
- VulnerabilityLow vulnerability (10 / 100)
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
Related species
Recommendations grouped by close relatives, companion choices, and similar care.
