Gold with Blue Edges Hammer Coral

The Gold with Blue Edges Hammer is a standout Euphyllia coral featuring rich golden tentacle tips contrasted by cool blue stems, creating a striking two-tone effect that looks exceptional under reef lighting. The warm gold provides brightness and pop, while the blue stems add depth and refinement, making this hammer an instant focal point in any reef aquarium.

Combined with the signature hammer-shaped tentacles and flowing movement Euphyllia are loved for, this coral delivers both colour impact and natural motion — ideal for mixed reefs and LPS-dominant systems.

Natural Habitat & Distribution

Hammer corals (Euphyllia ancora / Euphyllia parancora) originate from the Indo-Pacific region and are commonly found across:

• Indonesia

• Australia’s Great Barrier Reef

• Fiji and Tonga

• The Philippines

• Central and Western Pacific reef systems

In the wild, hammer corals inhabit protected reef slopes and lagoon environments with moderate lighting and gentle to moderate water movement.

A Brief History

Euphyllia corals have been reef-keeping staples for decades thanks to their flowing movement, adaptability, and strong visual presence. Gold-based hammer morphs paired with contrasting stem colours, such as blue, have grown increasingly popular as modern LED lighting enhances colour separation and fluorescence, making these varieties highly sought after.

Appearance & Growth

Classified as an LPS (Large Polyp Stony) coral, the Gold with Blue Hammer features branching skeletons topped with fleshy, hammer-shaped tentacles.

• Warm gold tentacle tips

• Cool blue stems

• Classic hammer-shaped ends

• Smooth, rhythmic movement in moderate flow

• Subtle to moderate fluorescence under blue lighting

Growth occurs through branching, with additional heads developing steadily under stable conditions.

Placement & Lighting

Hammer corals perform best under moderate lighting and thoughtful placement.

• Lighting: Medium

• Best placed in the lower to mid areas of the aquarium

• Acclimation recommended when increasing light intensity

Flow Requirements

Provide moderate, indirect flow.

• Enough movement to keep tentacles gently swaying

• Avoid strong, direct laminar flow which may damage tissue

A gentle, alternating flow pattern is ideal.

Water Chemistry

Stable water parameters are essential for Euphyllia success.

Maintain consistent levels of:

• Alkalinity

• Calcium

• Magnesium

Hammer corals prefer low to moderate nutrients and benefit from overall system stability rather than frequent parameter swings.

Feeding

Primarily photosynthetic, hammer corals benefit from occasional supplemental feeding.

• Mysis shrimp, brine shrimp, finely chopped seafood

• LPS pellets or coral-specific meaty foods

Feed sparingly 1–2 times per week when tentacles are extended.

Temperament & Spacing

Hammer corals are semi-aggressive and may extend sweeper tentacles.

• Allow several inches of space from neighbouring corals

• Avoid placement near delicate or easily stung species

• Can coexist with other Euphyllia when given adequate room

Frag Size & Natural Variation

• Frag size: Typically 1–2 heads (unless otherwise stated)

• Colour intensity and stem contrast may vary depending on lighting and tank conditions.

Care Summary

• Care Level: Moderate

• Flow: Medium (indirect)

• Lighting: Medium

• Temperament: Semi-aggressive