Bluelined Rockskipper (Blenniella periophthalmus)
Blenniella periophthalmus
Origin: Indo-Pacific
Water Parameters
Quick Stats
- Max Size
- 15 cm
- Min Tank
- 120 L
- Lifespan
- 4-6
- Swimming Level
- bottom
- Schooling
- No
- Diet
- Herbivore — algae, nori, spirulina, algae sheets
- Temperament
- Semi-aggressive toward conspecifics and similar blennies; peaceful toward dissimilar fish
About
The Bluelined Rockskipper is a robust intertidal blenny with a brownish body decorated with vivid blue horizontal streaks on the head and anterior body. A strong swimmer capable of navigating turbulent water, it is a dedicated algae grazer and a practical, visually interesting addition to fish-only or FOWLR systems.
Care Guide
Provide ample live rock with algae coverage for natural grazing. Strong flow mimics its intertidal origin. Feed nori, spirulina, and algae sheets; supplement with mysis for protein. Keep one per tank — semi-aggressive toward conspecifics and similarly shaped blennies. Secure lid required. Hardy and adaptable.
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