Neptune Grouper (ULTRA RARE EXOTIC FISH)

About this fish

Neptune Grouper (ULTRA RARE EXOTIC FISH) is a deepwater marine grouper sold to advanced aquarists. In trusted trade listings, “Neptune Grouper” corresponds to the species Cephalopholis igarashiensis. Practical use in the aquarium hobby: it’s a predatory, show-stopping centerpiece fish for aquariums designed for stable, long-term marine fish care.

Features:

• Predatory grouper behavior: small tankmates and ornamental crustaceans may be treated as prey.
• Natural deep-reef orientation: provides shaded structure/territory such as caves, overhangs, and rockwork.
• Acclimation considerations: suppliers specifically note that deepwater collection and transitions to prepared foods can be challenging and require careful handling/conditioning.
• Conditioning-focused sourcing: some sellers condition Neptune Groupers in their facilities and release only specimens showing stable feeding and behavior.
• Lighting preference: described as a deep-reef fish that can be stressed by bright lighting; moderate to low light approaches are commonly recommended.
• Diet expectations: groupers of this type are carnivorous and are often selected for readiness to eat prepared frozen foods.

Specifications:

• Verified identity (species): Cephalopholis igarashiensis
• Type: Deepwater marine grouper (predatory fish)
• Recommended tank size (minimum): 200 gallons (per one species care reference)
• Temperature range: 68–74 °F (per one species care reference)
• Light: Moderate to low (deep-reef fish; can be stressed by bright light)
• Diet: Carnivorous; suppliers highlight an expectation of feeding consistency and an aggressive response to prepared frozen foods after conditioning