× crosspec / fish-tank / devices / fish_eb_jd
live fish-tank v0.1 · 276 entities

fish-tank fish species

Electric Blue Jack Dempsey (Rocio octofasciata var.)

Recessive-gene morph — slightly less hardy than wild type; smaller adult size. Same aggression profile.

Specifications

ecosystem
freshwater
min tank gallons
55
adult size in
7
temperature range f
72-86
ph range
6.5-8.0
gh range dgh
9-20
care difficulty
intermediate
aggression
aggressive
community compatible
no
schooling min count
1
diet
carnivore
lifespan years
8-15
tank zone
mid

Sources

  1. Aquarium Co-Op video / blog content · ingest 2026-05-06
  2. Practical Fishkeeping public articles · ingest 2026-05-06