Fish Tank
Conditions & tides
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
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About this site
Fish Tank is a reef dive on the East End of Grand Cayman, along Queen's Highway. The mooring pin sits in 11 m (35 feet) and the maximum depth is 18 m (60 feet), with the boat ride from the dock taking about 25 minutes. It is friendly to snorkellers too.
The name suits the place, since the edge of the miniwall draws a crowd of fish and is a busy hive of activity. A short way east of the pin is a large formation of pillar coral, 8 to 10 feet (about 2.5 to 3 m) tall, an old, slow-growing colony that should never be touched. Big schools of French and bluestriped grunts sit in the small grooves east of the pillars. Patient divers can search the shallow hardpan for lettuce sea slugs, which are only an inch or two long.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
NudibranchNudibranchReported here · unconfirmed
Eagle rayEagle rayReported here · unconfirmed
Symmetrical Brain CoralPseudodiploria strigosaReported here · unconfirmed
Mustard Hill CoralPorites astreoidesReported here · unconfirmed
Lobed Star CoralOrbicella annularisReported here · unconfirmed
Massive Starlet CoralSiderastrea sidereaReported here · unconfirmed
Elkhorn CoralAcropora palmataReported here · unconfirmed
Atlantic Blue TangAcanthurus coeruleusReported here · unconfirmed
Yellowtail DamselfishMicrospathodon chrysurusReported here · unconfirmed
Striped ParrotfishScarus iseriReported here · unconfirmed
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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