Port Cichlid
Cichlasoma portalegrense
Cichlidae
About
The port cichlid is a hardy, undemanding medium cichlid from the Laguna dos Patos and Tramandai drainages of subtropical Rio Grande do Sul in southern Brazil. Its cool-tolerant origins make it forgiving of a wide range of temperatures and water chemistry. Generally peaceful for a cichlid, it forms pairs, sifts and digs the substrate, and shows engaging parental behaviour, turning aggressive mainly when guarding a spawn.
Care
Keep a pair in a soft-sand tank of 150 L or more with rocks and driftwood for cover and strong filtration. Tolerates cooler, wide-ranging conditions but will dig, so anchor or avoid delicate plants; watch aggression toward much smaller tankmates when breeding.
Diet
Carnivore-leaning omnivore that sifts sand; feed sinking pellets and frozen or live foods with some vegetable matter. Undemanding and readily accepts prepared diets.
Tankmate compatibility
Possible with care (228)
Avoid (43)
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.
- Extended finsStrong · from about 8 months, and later in a suppressed male
On many cichlids and killifish the male's dorsal and anal fins draw out into trailing points as he matures, while the female's stay rounded.
- VentingA hint only · 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.
- 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.
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Frequently asked questions
- What tank size does a Port Cichlid need?
- A Port Cichlid needs an aquarium of at least 150 litres (39.6 US gallons) with a footprint at least 90 cm (35.4 in) long — for this species, swimming length matters as much as raw volume.
- What water parameters does a Port Cichlid need?
- Port Cichlid does best at 16–26 °C (60.8–78.8 °F), pH 6–7.8 and a general hardness of 3–15 °dGH.
- Is the Port Cichlid suitable for beginners?
- Yes — Port Cichlid is one of the easier species to keep and forgives typical first-tank mistakes, as long as the aquarium is cycled and maintained.