🔍 Find an aquatic vet
- Search the WAVMA (World Aquatic Veterinary Medical Association) directory — or search "aquatic / exotics vet near me".
- Call ahead: "Do you treat marine fish?" Few vets do — find and save one now, while things are calm.
- Ask the exam fee when you call — knowing the cost up front removes the money-panic in a crisis.
📇 Fill this in now
🚨 Is this an emergency now?
Quarantine and get help promptly if you notice any of these:
- Staying tightly retracted and not opening for days — short-term is normal, persistent isn't (check light, flow, water).
- Mouth gaping open or expelling its insides, or a deflating, shrinking column — classic decline; act on water quality fast.
- Constant wandering that never re-anchors — unhappy with light, flow or placement.
- Pale/bleached colour — loss of zooxanthellae from too little light or stress; and remove a clearly melting anemone before it fouls the tank.
🚗 On the way / while you wait
✅ Do
- Test your water NOW — salinity, ammonia, nitrite, nitrate, alkalinity and temperature — and correct anything obviously off.
- Move the fish to a hospital / quarantine tank if you have one.
- Keep it in its own stable tank water.
- Keep the tank calm and dim.
⛔ Don't
- Don't dose the display tank with OTC or shop “cures” blindly — copper and many meds are harmful to inverts and corals, and they mask the real cause.
- Don't make a big, sudden parameter swing.
- Don't add anything you can't explain the reason for.
🎒 What to bring
- A recent, full water test — salinity, alkalinity, nitrate, temperature (and ammonia/nitrite/pH if you have them).
- Photos plus a short video of what you’re seeing — it may not show it in the clinic.
- A note of your system and how you feed.
- Only if advised: the animal itself, in its own tank water.
🗣️ What to tell the vet / expert
- Adult size
- Roughly 6–12 in (15–30 cm) across in a home tank; larger in the wild.
- Lifespan
- Several years to 10+ with good care; anemones are effectively very long-lived when kept well.
- Minimum tank
- 30 gallons is the absolute minimum, 50 gallons-plus preferred per anemone — and an established, stable tank (commonly ~6 months in).
- Lighting
- Moderate-to-high reef light — it's a photosynthetic carnivore that relies on symbiotic zooxanthellae. (Sources don't give a firm PAR figure, so match good reef lighting to your tank depth.)
- Water flow
- Moderate, indirect flow — enough to keep the tentacles gently moving, not a direct blast.
- Placement
- It anchors/buries its foot in a rock crevice or sand, but it WANDERS until it finds a spot it likes — so screen every powerhead and overflow, or it can be sucked in and shredded.
- Temperature
- 72–78°F (22–26°C).
- pH
- 8.1–8.4.
- Specific gravity
- 1.023–1.025 (standard reef ~1.025 / 35 ppt).
- Other targets
- dKH ~8–12; zero copper, as with any invert.
- Feeding
- Photosynthetic PLUS a carnivore — small (~¼ in) meaty pieces of fish, shrimp or mussel every 2–3 days when new or small, tapering to 1–2× a week once established under good light.
- Temperament
- Aggressive for an anemone — a strong sting that's often fatal to nearby corals and other anemones, and it actively preys on small fish and shrimp that brush its tentacles.
- Reef-safe
- No — it wanders and stings (often fatally) corals and other anemones, and it eats small fish and shrimp. Keep it in a species or FOWLR tank, not a mixed reef.
- Natural range
- Caribbean / Western Atlantic (south-eastern US through the Caribbean).
⚕️ Most marine illness starts with water quality or acclimation, not infection — bring a full set of parameters (salinity, alkalinity, nitrate, temperature). Marine-fish medicine is specialised and few vets treat fish, so call ahead. Copper and many OTC 'cures' are toxic to invertebrates and corals — never dose them in a reef display; treat a sick fish in a separate quarantine/hospital tank, and tell the vet exactly what you've already added.
❓ Questions to ask
- Do you treat marine fish?
- What are the likely causes — and could my water or acclimation be the cause?
- What is the treatment plan, the likely cost, and what should I watch for?
- How do I prevent this happening again?