care

Complete Diamond Watchman Goby Care Guide for Sandbed Health

A practical guide to keeping Diamond Watchman Gobies healthy while protecting sandbed biodiversity in reef aquariums.

By ReefBay Feb 22, 2026 1 min read
Firefish goby in a reef tank used for goby care and compatibility guidance

Why reefers love Diamond Watchman Gobies

Diamond gobies keep sandbeds aerated and visibly cleaner, but they need mature systems with regular feeding.

Tank setup

  • Fine sand substrate at least 1.5–2 inches deep
  • Covered top to prevent jumping
  • Stable salinity and low aggression tank mates

Feeding and long-term success

Supplement natural sand-sifting with frozen foods and pellets. Watch body condition weekly and reduce competition at feeding time.

Browse compatible livestock in the ReefBay shop and track behavior and parameter trends in the ReefBay app.

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