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Blue Tunicate (Rhopalaea birkelandi)

Find Blue Tunicate across reef-livestock retailers and from fellow hobbyists on ReefDock. Compare sources, check live pricing where available, and review source-tank parameters on Reef-Trak-verified invertebrate listings before you buy.

Blue Tunicate
Photo: (c) Jeremy_Jodoin, some rights reserved (CC BY-NC), uploaded by Jeremy_Jodoin · cc-by-nc
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Where to buy Blue Tunicate

ReefDock searches the following reef retailers for this invertebrate. Click through to see the live price.

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About Blue Tunicate

Blue Tunicate is a small, solitary tunicate with a distinctive bright blue or purple-blue coloration on its body. It has a barrel or vase-like shape with two siphons (incurrent and excurrent openings) at the top and typically reaches 1–2 inches in length.

Key facts

Origin
Indo-Pacific, including waters around the Hawaiian Islands and broader tropical Pacific coral reef regions.
Type
Other
Max Size
2
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.023-1.025
Family
Rhopalaeidae
Min tank size
20 gallons
Diet Details
Filter feeders that consume phytoplankton, zooplankton, and dissolved organics. Benefit from regular phytoplankton supplementation and well-established biofilms.
Appearance Description
Blue Tunicate is a small, solitary tunicate with a distinctive bright blue or purple-blue coloration on its body. It has a barrel or vase-like shape with two siphons (incurrent and excurrent openings) at the top and typically reaches 1–2 inches in length.
Compatibility
Very peaceful and non-competitive with fish and invertebrates. Best kept with calm tank-mates that won't disturb or stress them during feeding cycles.
Notes
• Minimum 20 gallon tank • Prefers stable, established reef systems with gentle to moderate flow • Maintain temperature 72–78°F, pH 8.1–8.3, and salinity 1.023–1.025 • Filter feeder; ensure adequate phytoplankton and dissolved organic matter; may benefit from occasional targeted feeding • Attach or position on stable surfaces away from aggressive corals and predatory fish
Care Level
Moderate
Category
Other

Looking for a hobbyist seller?

ReefDock's marketplace lets reef-keepers sell invertebrates directly to other reef-keepers with Stripe-secured checkout and live-arrival photo confirmation. Browse current invertebrates listings on ReefDock, or list your own.

Verify the source tank before you buy

ReefDock is the sister app to Reef Trak. Sellers who maintain a Reef Trak tank log can publish source-tank parameters on eligible invertebrate listings — so you can see the conditions a invertebrate was raised in before you buy. Log this invertebrate on Reef Trak.

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