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Jack Dempsey (Rocio octofasciata)
Photo: Adam Buschbacher · Copyrighted free use via Wikimedia Commons

Jack Dempsey

Rocio octofasciata · Cichlidae

Also known as Electric blue Jack Dempsey

Intermediate

A heavy-bodied, sparkling cichlid with a fighting reputation to match its name.

Minimum tank
300 L
Temperature
22–28 °C
pH
6.5–8
Adult size
20 cm
Group size
1+
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Care requirements
Minimum tank volume
300 L
Temperature
22–28 °C
pH
6.5–8
Hardness
5–20 dGH
Lifespan
10–15 years
Diet
Carnivore — pellets, frozen foods, earthworm, prawn.
Care level
Intermediate
Origin & habitat
Native region
Central America
Water type
Freshwater
Biotope
Slow, warm, sandy rivers
Natural conditions
Sand, rock caves, strong filtration; the blue form is more delicate.
Behaviour & stocking
Temperament
Aggressive
Minimum group
1 fish
Swims
All levels
Good tank mates
Similar-sized Central American cichlids
Large plecos
Avoid
Community fish
Small tanks
Plants
Breeding & difficulty
Breeding difficulty
Intermediate
Sexing
Males are larger with pointed fins.
Notes
Substrate spawner; pairs are very aggressive when guarding.
Common ailments
Hole-in-the-head
Ich
Fight injuries

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