Chaetodon Kleinii (The Klein's Butterflyfish)

Overview

• Native to the Indo-Pacific, commonly found in coral reefs, lagoons, and rocky reef areas.
• Recognizable by its golden-yellow body with a subtle brownish hue and a characteristic vertical white bar behind the eye.
• A hardy and adaptable species, making it one of the easier butterflyfish to keep in captivity.
• Often found alone or in pairs in the wild, though it can form small groups in areas with abundant food.
• Best suited for an established marine aquarium with live rock structures and open swimming spaces.

Feeding

• Omnivorous, feeding on small invertebrates, coral polyps, and algae in its natural habitat.
• In captivity, it requires a varied diet that includes marine algae, frozen mysis shrimp, high-quality pellets, and sponge-based foods.
• Readily adapts to prepared foods, making it easier to feed compared to other butterflyfish.
• Offering multiple small meals throughout the day helps ensure proper digestion and nutrient absorption.
• A well-balanced diet promotes vibrant coloration and long-term health.

Habitat

• Prefers coral-rich reef environments with moderate water flow.
• Frequently found near reef edges and rocky formations where it can graze and find shelter.
• Aquarium setups should include live rock to encourage natural foraging and hiding places.
• Requires well-oxygenated water with stable parameters for optimal health.
• Providing shaded areas along with open spaces helps mimic its natural habitat and reduces stress.

Fish Care

• Optimal water temperature: 74-80°F (23-27°C) to support metabolic function.
• Preferred pH range: 8.1-8.4, with a salinity level of 1.020-1.025.
• Requires high-quality filtration and regular water changes to maintain water clarity.
• Not completely reef-safe, as it may nip at corals, particularly soft corals and polyps.
• Providing live rock structures supports its natural behavior and helps with acclimation.

Compatibility

• Generally peaceful and can coexist with a variety of tankmates.
• Compatible with tangs, wrasses, and other semi-aggressive marine fish.
• Not ideal for reef tanks due to its potential to graze on coral polyps and invertebrates.
• Best kept with similarly sized fish to prevent bullying or competition for food.
• Providing enough space and hiding areas helps minimize territorial behavior.

Aquarium Behavior

• An active swimmer that enjoys exploring its surroundings.
• Often observed grazing on algae and picking at rock surfaces.
• Adapts quickly to captive environments, becoming more confident over time.
• Providing live rock enhances its foraging behavior and creates a stimulating environment.
• Can develop recognition of its caretaker and respond actively during feeding sessions.