Blue tang
Paracanthurus hepatus
Essential gear
- Large marine tank
- Strong flow and filtration
- Refractometer / salinity meter
- Nori clip
- Quarantine tank
Lifespan
8–20years
Water temperature
24–27°C
Salinity
1.023–1.026SG
Water column
All levels
Fast cruiser that also scrapes algae on rock
Keep in groups
Usually kept alone
Only consider same-species groups in a large tank
Diet
Mostly herbivorous
Nori and herbivore diets, with a little meaty food
Suggested habitat
Use a large system well beyond yellow-tang needs, with a continuous long swim path. Keep rock corridors along the glass so fish aren’t trapped in dead ends.
Plates are husbandry references—not build plans or generator parameters. Check your own water, vessel, and stocking before you act.