Coralkin honest saltwater & reef care

🩺 Emergency Vet-Prep

Carpet Anemone Emergency Vet-Prep

Marine vets are rare and it's easy to freeze in a crisis. This is the one page to have ready — how to find a vet, what to bring, what to tell them, and the questions to ask. Print it, keep it with your care notes.

Black & white saves ink and prints cleanly on any printer.

Not sure it's serious yet? Run the symptom checker or the water-test checker first — many worries turn out to be a husbandry fix.

Coralkin honest saltwater & reef care · coralkin.com
Carpet Anemone — Vet-Prep

⚠️ Safety first — read this

A carpet anemone's sting is strong enough to catch and eat fish — even the clownfish you bought to host it — and it can sting a human. Never let one get pulled into a powerhead: a ruptured carpet can crash the whole tank.

🔍 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

My vet
My carpet anemone
What I'm seeing

🚨 Is this an emergency now?

Quarantine and get help promptly if you notice any of these:

  • Mouth gaping open and staying open — distress.
  • Bleaching or going pale — zooxanthellae loss; a badly bleached carpet often won't recover.
  • Slowly shrinking and “fading away” — the classic giant-carpet decline.
  • Won't eat, spits food, or shows mushy/disintegrating tissue — often a transit infection; and a detached, drifting foot is heading for a pump.

🚗 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
Big — commonly ~1–2 ft across, and exceptional Haddon's carpets approach 3 ft. (A mini/“maxi-mini” carpet, S. tapetum, stays 4–6 in.)
Lifespan
Not well documented — anemones can be very long-lived when healthy, but no reliable captive figure exists, so don't count on a set number.
Minimum tank
~30 gallons is the absolute floor for Haddon's; a large, mature system is strongly preferred given the adult size and the deep sand bed it needs.
Lighting
High — roughly PAR 200–300+ for Haddon's (a mini carpet takes ~150–250). Photosynthetic, so bright, stable light is essential.
Water flow
Low-to-moderate, gentle turbulent flow; cut the flow right down while it settles and acclimates.
Placement
A SAND-dweller — Haddon's buries its foot in a deep 3–5 in sand bed (the giant carpet anchors to solid material set within the sand). Place it BEFORE other livestock, and screen every pump: a wandering carpet in a powerhead can rupture and crash the tank.
Temperature
~75–82°F (24–28°C) — stability matters more than the exact set-point.
pH
8.1–8.4.
Specific gravity
1.023–1.025.
Other targets
dKH ~8–12; zero copper, as with any invert.
Feeding
Photosynthetic PLUS an aggressive meaty eater — spot-feed mysis, brine, chopped shrimp/clam/mussel or silversides cut smaller than the mouth, roughly 1–3× a week. Don't overfeed.
Temperament
Extremely powerful, sticky sting — it is a genuine predator that catches and eats fish, and it's one of the few anemones that can sting a human. A large, stressed one can discharge and harm the whole tank.
Reef-safe
No — not reliably reef-safe. Its potent sting harms corals and other anemones, and it eats fish and inverts. Treat it as a species-display animal, not a mixed-reef citizen.
Natural range
Indo-Pacific (and Red Sea).

⚕️ 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?