Tank size, water parameters, diet, temperament, reef-safety, and which species fits which keeper. All data cross-checked against vetted Fast Aquatics vendor records.
| Min tank size | 100 gallons |
| Care difficulty | expert |
| Diet | Omnivore |
| Temperament | Peaceful |
| Reef-safe | n/a |
| Temperature | 74-80°F |
| Min tank size | 75 gallons |
| Care difficulty | advanced |
| Diet | Omnivore |
| Temperament | Peaceful |
| Reef-safe | n/a |
| Temperature | 74-80°F |
| Use case | Recommended |
|---|---|
| Best for beginners | Haddoni Carpet Anemone |
| Best for nano tanks (under 30 gallons) | Haddoni Carpet Anemone |
Pros: Adult size fits 100 gallons tanks well. Easy to feed on standard pellet/flake/frozen diets. Reef compatibility: n/a.
Cons: Requires expert-level husbandry experience. Tank footprint (100 gallons) is a hard floor - smaller tanks lead to stunted growth or aggression. Sourcing premium specimens can require waiting for charter breeder drops.
Pros: Adult size fits 75 gallons tanks well. Easy to feed on standard pellet/flake/frozen diets. Reef compatibility: n/a.
Cons: Requires advanced-level husbandry experience. Tank footprint (75 gallons) is a hard floor - smaller tanks lead to stunted growth or aggression. Sourcing premium specimens can require waiting for charter breeder drops.
Mixing Mertensii Carpet Anemone and Haddoni Carpet Anemone in one tank depends on adult size overlap, territory needs, and water-chemistry match. Peaceful/Peaceful pairing means both species share similar temperament so direct fights are rare, but resource competition (food, territory, hiding spots) is common. Both species need water parameters within 74-80°F and 74-80°F. If keeping together, introduce the more peaceful species first by 2-4 weeks, provide multiple hiding spots, and feed at separate ends of the tank.
Both Mertensii Carpet Anemone and Haddoni Carpet Anemone sell at three tiers on Fast Aquatics and competitor sites. Budget tier (pet-store grade): $5-50. Mid-tier (LFS or online vendor stock): $25-200. Premium tier (named lines, charter breeders): $100-2,000+. Captive-bred or aquacultured specimens cost more upfront but ship healthier than long-supply-chain wild-caught. Browse Mertensii Carpet Anemone and Haddoni Carpet Anemone live availability on Fast Aquatics for current vendor pricing with carrier-tracked Buyer Protection on every order.
Both Mertensii Carpet Anemone and Haddoni Carpet Anemone are at similar care difficulty (expert vs advanced). For absolute first-time keepers, neither is ideal - consider a hardier alternative first.
Mertensii Carpet Anemone requires 100 gallons minimum, while Haddoni Carpet Anemone needs 75 gallons. Both should be planned around adult size, not juvenile size.
Compatibility depends on adult size, temperament, and territory overlap. Both are typically considered peaceful (Mertensii Carpet Anemone) and peaceful (Haddoni Carpet Anemone) species. Always quarantine both, introduce the more peaceful species first, and monitor for aggression in the first 30 days.
Pricing varies by source and grade. Budget specimens from pet-store-grade vendors run $5-50 for both species. Mid-tier specimens run $25-200. Premium grades (charter breeders, named lines) reach $100-2,000+. Browse Fast Aquatics for current market pricing.
Mertensii Carpet Anemone is rated n/a and Haddoni Carpet Anemone is rated n/a. For mixed-reef setups, prefer the species rated reef-safe; species rated "with caution" or "no" need careful tankmate planning.
Mertensii Carpet Anemone: Omnivore. Haddoni Carpet Anemone: Omnivore. Diet match-up matters for compatible feeding schedules and nutritional needs.
Browse the full comparison library for more side-by-side species breakdowns. See full care guides for Mertensii Carpet Anemone and Haddoni Carpet Anemone for the complete husbandry breakdown of each.