Furry Diary

Not furry, but we like them anyway.

Texas Cichlid

Herichthys cyanoguttatus Baird & Girard, 1854

Also called Rio Grande cichlid, Rio Grande perch, Mojarra del norte

SpeciesShort profile

From North America: the lower Rio Grande drainage in southern Texas, USA, and north-eastern Mexico; also established in central Texas rivers and some other areas.123

At a glance the quick version

Length30 to 33 cm123
Sizelarge
The only cichlid native to the United States
Beautiful jewel-like spotting
Hardy and adaptable
32

Looks how to spot one

Large, deep-bodied cichlid

A robust cichlid dotted all over with rows of small pearly turquoise and cream spots on a darker body, with an iridescent blue-green sheen. Mature males develop a forehead hump, and breeding fish turn pale grey on the front half for a striking contrast.32

Coloursgrey to olive with turquoise and cream spotsiridescent blue-greenpale front half with dark rear when breeding32

Personality what they are like

Confident and strongly territorial, particularly males in smaller tanks; best with large, sturdy companions or on its own.23

Daily activity how busy a day looks

A constant digger that rearranges sand and gravel, and an alert, intelligent hunter.23

Grooming and care the hands-on bits

Powerful filtration, good oxygenation and weekly water changes of around a quarter to a half; avoid rooted plants and undergravel filters.2

Home where they are happiest

At least about 120 x 45 x 45 cm (around 255 litres) for one fish, much larger for a pair; 5 to 8 cm of sand or fine gravel, smooth rocks, wood and clay pots. Water about 20 to 28 C (cooler end of its natural 20 to 33 C range), pH roughly 6.0 to 7.5, moderately soft to medium hardness.213

Food basics what goes in the bowl

Omnivore: quality pellets as a base with frozen or live foods plus vegetables such as blanched spinach or peas.21

Company who they like around

Forms monogamous pairs, usually a larger male with a smaller female; raising six or more youngsters together lets a pair form naturally.23

The story where it all began

Baird and Girard described the Texas cichlid in 1854 from the Rio Grande. It is the only cichlid whose natural range includes the United States, and it became a well-known aquarium fish in the 1980s.123

Fun facts for the dinner table

  1. 1

    It is the only cichlid species native to the United States.3

  2. 2

    It tolerates fairly salty water, up to around 8 parts per thousand.3

  3. 3

    Courting pairs lock lips and slap tails as part of their display.2

  4. 4

    The green Texas cichlid sold in shops is actually a different species, Herichthys carpintis.3

Recognised by the official bits

IUCN Red List
Least Concern (assessed 18 October 2018)1
Taxonomy
Described by Baird and Girard in 1854; formerly in Cichlasoma, now in Herichthys3

The care rhythm Furry Diary remembers it for you

A typical home-care rhythm for a Texas Cichlid. It is our own starting plan, not a vet's advice, and you can change every line in the app.

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Where this comes from

Every breed page shows where each fact comes from. If we got something wrong, sorry, we are pet people, not a science magazine. Tell us at [email protected] and we will fix it.

  1. FishBase: Herichthys cyanoguttatus fishbase.seused for taxonomy, range, size, water, IUCN
  2. Seriously Fish: Herichthys cyanoguttatus seriouslyfish.comused for care, tank size, water, diet, behaviour, breeding
  3. Wikipedia: Texas cichlid en.wikipedia.orgused for names, size, appearance, history, fun facts

Checked 2026-09-30. Text is written in our own words from these sources.