Tropheus moorii

Tropheus moorii

A herbivorous Tanganyika cichlid with dozens of colour forms; fights its own kind so hard that it is kept only in big groups of one form.

Key facts

Body length
5.7 in without fins
Minimum tank
99 gallons
Group
15+
Temperament
Aggressive
Care level
4 / 5
Lifespan
Not well documented
Diet
Spirulina flakes and pellets, nori; no meaty foods
Origin
Lake Tanganyika, East Africa
Among all species
  • Hardier than3%
  • Bigger than69%
  • Calmer than14%

Water: their range vs yours

Temperature73–81°F
pH8–9.5
General hardness8–25 dGH

Tropheus moorii tank mates

How we check

The numbers the tank model uses for Tropheus moorii: water as ideal and tolerated ranges, bioload from adult mass, space, flow and how they act on other species.

Standard length
14.5 cm (SL)
Adult mass
91.46 g
Bioload at 25 °C
19.00 BU
Min. water
318 L net
Min. footprint
150 × 45 cm per group
Group
15+ (best 20)
Swims in
bottom, middle
Flow
moderate
Body / fins
deep bodied, normal fins
Diet type
herbivore
Fin nipper
none
Sensitive to
nitrate

Sources: Seriously Fish: Tropheus moorii

Care notes

Tropheus moorii grow to about 5.5 inches and graze algae on rocks. There are more than fifty regional colour forms, and they are very prone to bloat on the wrong food.

Keep a group of 15 to 20 of a single form in a 5-foot tank of 90 gallons or more, since small groups can fight to the death. Feed only vegetable food such as spirulina, never mix colour forms and do not add new fish to an established group.

Questions

What size tank does a tropheus moorii need?

At least 99 gallons (318 litres of water after decor). Adults reach about 5.7 inches without fins.

How many Tropheus moorii should be kept together?

Keep at least 15, ideally 20 or more: fewer feel exposed and hide or turn nippy.

What water do Tropheus moorii need?

73–81 °F, pH 8–9.5 and 8–25 dGH. Tropheus moorii come from Lake Tanganyika, East Africa.

How long do Tropheus moorii live?

Not well documented with good care.

What fish can live with Tropheus moorii?

Good tank mates include Assassin snail. Each is checked both ways for size, fin nipping, temperament, territory and shared water.