Invertebrates
Emerald Crab.
A stocky green reef crab that's one of the few things that'll eat bubble algae. A handy, beginner-friendly cleanup crew member, reef-safe with caution (a hungry one may pick at corals); keep it well-fed in a 10-gallon-plus reef.
Live fish are priced per supplier batch — prices may vary. Call to confirm current pricing.
- Condition
- new
- Fulfillment
- Local pickup — Erie, PA
Every animal is acclimated and health-checked in-house before it reaches the sales floor. This is a species we carry — it's most likely in the tanks around delivery days, but live stock changes daily. Please call (814) 456-9445 to confirm availability before you drive in.
Care at a glance
What to know before you take one home.
- Care level
- Beginner
- Temperament
- Semi aggressive
- Community
- Community safe
- Adult size
- 2.5"
- Min tank size
- 10 gallons
- Diet
- Herbivore
- Scientific name
- Mithraculus sculptus
Good tank mates
Generally peaceful enough for most reef community tanks and often kept alongside fish, snails, and other cleanup-crew inverts, where it eats bubble algae and detritus. Watch larger or hungry individuals, though, as they can turn opportunistic and pick at small ornamental shrimp, tiny snails, or even sleeping fish if underfed. Avoid keeping it with delicate inverts you care about, and offer enough hiding rock for everyone.
Good to know
The emerald crab is one of the few reef animals that will actively eat troublesome bubble algae (Valonia), making it a popular natural control for that pest.
Stock and individual temperament vary — call (814) 456-9445 for pairing advice before you buy.
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Visit the store
660 East 14th Street,
Erie, PA.
Mon–Fri 12–6 · Sat 11–4 · Sun closed. Call ahead on livestock — what's on the floor rotates.