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Mandarin Fish Dusk Spawning
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mating event

Mandarin Fish Dusk Spawning

Mandarin fish · Synchiropus splendidus

beginnerhigh confidenceBucket-list rank #10
TL;DR — Best in Moalboal, Philippines · Year-round.

Daily dusk mating ascents of mandarin fish above rubble patches, observable on a single short shallow dive.

When

Year-round

Where

  • Moalboal

    Philippines

    Best current option

    Year-round

    Established mandarin rubble patches with daily dusk dives, near the sardine ball at Panagsama.

    Open Moalboal in atlas →

  • Raja Ampat

    Indonesia

    Best current option

    Year-round

    Multiple house-reef rubble sites with reliable evening mandarin behavior.

    Open Raja Ampat in atlas →

Ethics

Minimal dive lights, no strobes during the ascent itself. Do not crowd known spawning rubble.

Operators

We don’t have curated operator listings for this encounter yet. The “Where” section above is the right starting point — cross-reference local regulators’ permit lists before booking.

Required experience

Open Water; excellent buoyancy and patience matter more than depth experience.

Conservation

Repeated bright-light exposure can disrupt the ascent. Follow operator etiquette strictly.

Limitations

Ascent is brief (often only minutes). Daily presence is consistent at established sites but not a guarantee.

Sources & methodology

How we summarise this

Daily ascent is consistent at established rubble sites but very brief; not a guarantee on any single dive.