Cryptic Sixline Wrasse

Cryptic Sixline Wrasse (Pseudocheilinops ataenia)

Appearance & Behavior

Also known as the Pink-Streaked Wrasse. Fine pink stripes and prominent eyes distinguish this shy species; it is not a true Six Line Wrasse. This peaceful, initially shy hunter needs sheltered rockwork and calm companions to feed confidently.

Quick Care Guide

• Care level: moderate; feeding access and peaceful stocking are essential.
• Temperament: generally peaceful; vulnerable to competition.
• Adult size: approximately 2.5 inches.
• Minimum aquarium: 20 gallons, with suitable swimming length, shelter, and feeding resources; larger mixed-wrasse systems may be necessary.
• Diet: carnivore.
• Reef compatibility: generally coral-compatible; tiny invertebrates may be consumed.
• Temperature: 72–78°F.
• Specific gravity: approximately 1.023–1.025.
• pH: 8.1–8.4.
• Alkalinity: 8–12 dKH; prioritize stable conditions suited to all inhabitants.

Aquarium Setup & Compatibility

Use a mature, fully cycled marine aquarium with secure rockwork, sheltered retreats, good oxygenation, and unobstructed swimming areas. Fit a tight lid and close openings around equipment; even settled wrasses can jump unexpectedly.

Provide secure rock crevices for nighttime shelter. This species does not have the same essential deep sleeping-sand requirement as leopard wrasses. Avoid layouts that leave the fish exposed without a retreat.

Choose small, calm companions and avoid aggressive wrasses and fast feeders that monopolize every meal. Provide shaded retreats and feed near shelter without fouling it.

Monitor feeding access and persistent territorial behavior after every stocking change.

Reef & Invertebrate Compatibility

Generally leaves healthy corals alone, but reef-safe does not mean harmless to every small animal. Tiny crustaceans, worms, and other microfauna can be eaten during foraging; very small ornamental animals may be at risk. Secure small frags and review livestock compatibility before introduction.

Feeding

Offer finely sized frozen mysis, enriched brine shrimp, small marine carnivore preparations, and suitable small pellets once accepted. Feed close to shelter and confirm swallowing; a shy fish can starve while bolder companions eat well.

Provide two or three small meals daily, adjusting portions to body condition and filtration capacity. Monitor belly fullness and thinning behind the head. Do not rely solely on natural hunting or a single food. Remove leftovers and arrange dependable feeding during absences.

Introduction & Long-Term Care

Plan quarantine and disease observation before purchase, with appropriate shelter and dependable feeding. Reduce repeated chasing and handling, and provide safe resting cover during observation. Acclimate to temperature and salinity, introduce with subdued lighting, and ensure all lid openings remain covered.

Allow quiet settling time and monitor whether the fish leaves cover to feed without harassment. Seek experienced aquatic-veterinary guidance for persistent food refusal, weight loss, abnormal breathing, lesions, or injuries. Maintain stable water quality and respond promptly to bullying or inadequate intake.