Trimac cichlid
Amphilophus trimaculatus
Also known as Three-spot cichlid, Trimac, Cichlasoma trimaculatum
Care at a glance
- Temperature
- 75–82°F (24–28°C)
- pH
- 7.0–8.0
- Adult size
- 13.8 in (35 cm)
- Minimum tank
- 90 gal (340 L)
- Temperament
- Aggressive
- Social behavior
- Solitary
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Easy
- Rarity
- Common
- Origin
- Pacific-slope rivers from Mexico to El Salvador, in slow lower valleys over mud and sand among roots and weeds.
- Family
- Cichlidae
Overview
A single adult needs a tank of at least 340 liters at 24 to 28 C and pH 7.0 to 8.0. Provide rockwork and expect heavy digging in the substrate. Feed a varied diet of quality pellets and frozen foods, with some vegetable matter to balance it out. This is an aggressive fish best kept alone or with a bonded mate.
In the wild
The trimac lives in Pacific-slope rivers from Mexico to El Salvador. It favors slow lower valleys with mud and sand bottoms among roots and weeds. This is a big, digging cichlid that reshapes its surroundings. Give it a sturdy layout it cannot easily topple.
Good to know
Amphilophus trimaculatus was described by Gunther in 1867 and is often still traded as Cichlasoma trimaculatum. It is named for three dark blotches along the flank, and breeding adults flush gold and orange with red speckling around the head. Males reach about 35 cm, larger than females.
Did you know
Trimac stock was used in the breeding history of the man-made flowerhorn, which borrows its bright color and nuchal hump.
Where to buy
Some links may not be the exact species or variety.
…or ask your local fish store.
Appears in
Keeping Trimac cichlid?
Track water tests, reminders and stocking fit.
Related species

Midas Cichlid
Amphilophus citrinellus13.8 in (35 cm)79 gal (300 L)70–79°F (21–26°C)
Red devil cichlid
Amphilophus labiatus13.8 in (35 cm)75 gal (284 L)75–79°F (24–26°C)
Flowerhorn cichlid
Amphilophus hybrid15.7 in (40 cm)90 gal (340 L)77–88°F (25–31°C)
Oscar
Astronotus ocellatus13.8 in (35 cm)95 gal (360 L)68–82°F (20–28°C)
Redhead Cichlid
Vieja melanurus14.6 in (37 cm)75 gal (285 L)77–82°F (25–28°C)
Blackbelt Cichlid
Vieja maculicauda12.6 in (32 cm)66 gal (250 L)72–82°F (22–28°C)