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    Green Brittle Starfish - Ophiarachna incrassata

    That Fish Place

    Item # 206765 / Manufacturer Part # F93 0045 0210

    Was $21.99
    Now $21.99
     
     (Out of Stock)
    This is a Restricted item and is not covered by our Arrive Alive 5-Day Guarantee. Please see our Guarantee Policy and Restricted Species List for more information.
    Ophiarachna incrassata is commonly available as both Green Brittle Starfish and Yellow Brittle Starfish, a less common color variant. They are voracious scavengers and are one of the more predatory serpent starfish; they should not be kept with small gobies, blennies, shrimp and similar fish and inverts. These may easily be kept in numbers as long as extra food is supplied.

    Starfish in general are very sensitive to changes in water quality and conditions. If temperature, salinity or other water parameters change quickly, starfish cannot regulate the change and are often damaged or killed. Be sure to acclimate carefully and while doing water changes, make sure the "new" water is as close as possible to the "old" water in its parameters.

    Most brittle and serpent starfish are scavengers. Some may prey on snails and invertebrates while others eat detritus, leftover food, and tiny organisms in and on the substrate and rockwork. These starfish do not have the suction cup-like tubed feet common in other starfish. Their legs are instead often covered with small spines or hardened scaly plates. The names "brittle starfish" and "serpent starfish" are often used interchangeably, but "serpent starfish" usually refers to smoother-legged "brittle starfish". These starfish will usually hide in rockwork or caves and come out only to feed. Some may prey on live inverts or small fish if underfed, and they may also prey on sick, dead or dying fish. Brittle and Serpent starfish can be fed by placing a piece of clam, shrimp, scallop or other small, meaty foods by their mouth.

    Like many other starfish, Brittle Starfish and Serpent Starfish will sometimes break a leg off if stressed or harassed. This is seen even more in these types of starfish than in many of the thicker-bodied starfish (hence the name "brittle" starfish). As long as the starfish is otherwise healthy, these legs can regenerate and the starfish can continue to grow and thrive. These starfish often may have asymmetrical legs where they have broken off and begun to grow back.

    Common NameGreen Brittle Starfish
    Scientific NameOphiarachna incrassata
    OriginIndo-Pacific
    Reef SafeYes
    Invert SafeYes, with caution
    Community SafeYes, with caution
    DifficultyEasy
    Max Size (in inches)central disk 2 , overall 20
    Min Tank Size (in gallons)100
    DietCarnivore, Scavenger
    Specific Gravity Range1.022-1.026
    pH Range8.0-8.4
    Temperature Range75-82
    RestrictedYes
    View Acclimation Procedures View Guarantee Policy View all Shipping Information


    Most Frequently Asked Questions:

    Q: Is your livestock covered by any guarantee?
  • Most of our live items are covered by our 5-day Arrive Alive Guarantee. Restricted Items are not covered by this policy for any reason. View the full Livestock Guarantee Policy and Restricted Species list for full details. Any losses must be reported to us within the 5-day guarantee period and we do require verification for any losses.
  • Shipping charges are not covered by our livestock guarantee policy and are non-refundable.

  • Q: When will my Livestock order ship?
  • Live orders (fish, invertebrates) are shipped FedEx Standard Overnight or FedEx Priority Overnight Monday through Thursday for delivery Tuesday through Friday.
  • Live plants and live rock orders are shipped via FedEx 2-day express Monday through Wednesday for delivery Wednesday through Friday. Shipping upgrades to overnight shipping are available for an additional fee.
  • Orders placed before noon (Eastern) are generally shipped the same day. Orders placed after noon are shipped the next shipping day.


  • Q: How much does it cost to have live plants and animals shipped to me?
  • Live Fish/Invert Charges:
  • *Standard Overnight: $34.99
  • Priority Overnight: $44.99
  • Live Aquarium Plant Shipping Charges:
  • FedEx 2-day Plant Shipping: $13.99 (default ship method)
  • *Standard Overnight Plant Shipping: $29.99
  • Priority Overnight Plant Shipping: $39.99
  • Live Rock Shipping Charges:
  • Packages are shipped free via FedEx 2-day Express. You may upgrade the shipping method to Standard Overnight or Priority overnight for an additional charge.
  • Please contact a livestock representative for upgraded shipping quotes at 1-877-367-4377.

  • *Standard Overnight where available only, priority rate may apply. Shipping charges are not covered by our livestock guarantee policy and are non-refundable.


  • Q: How do you ship live plants and animals?
  • Livestock orders are packed and shipped in a separate facility from dry goods and cannot be shipped with dry goods.
  • We make every effort to make transit comfortable and safe for livestock. We review the temperature and destination for every order, and pack the livestock accordingly. Fish and invertebrates are triple-bagged and packed with heat packs or ice packs (as needed) in insulated styrofoam containers and cardboard shipping boxes. Plants are carefully wrapped in wet paper and plastic then shipped in standard FedEx shipping boxes (with heat packs or ice packs as needed).
  • *Heat packs are usually taped to the lid or side of the box. These packets should be discarded after delivery; do not add these packets or their contents to your aquarium.
  • We always attach a copy of your invoice/packing list and our Guarantee Policy inside the box.


  • Q: Where does That Fish Place - That Pet Place ship Livestock?
  • Livestock shipping is available only within the contiguous 48 states (except California). We cannot ship livestock internationally (including Puerto Rico) or to Alaska, Hawaii or California.
  • View our complete list of aquatic plant shipping restrictions.
  • We are unable to ship livestock to APO or PO addresses.


  • Q: Can I specify size, color or sex?
  • Sizes of livestock items offered can vary by supplier, collection area, and time of year. We do not assign specific measurements to live items, but rather general sizes (small, medium, large, XL). If the actual size of a fish or invertebrate you are considering is a concern, please speak directly to a livestock representative to discuss the items you're considering. We do not sell any fish by sex other than those specifically listed as "male" or "female". We cannot guarantee that the fish can be successfully sexed or that the ratio of male/female you request will be available.
  • Please be aware that coloration within species may be quite variable. The specimen you recieve may not look exactly like the representative photo on the site do to these natural variations in color or markings. If you have a request for a specific color in any of our assorted items, you contact the Livestock Mailorder department at 877-367-4377 or livefish@thatpetplace.com. We try to fill special requests when possible, but cannot guarantee the preference.
  • Average Rating

    AMAZING 7/18/2012

    Reviewer: Madi

    This is pretty much my favorite of all saltwater inverts, they love to wrap around my fingers, and can be trained just to take food right out of your hand by their legs, overall I would recommend this to anyone with a saltwater tank. P.S. Because I feed him every 3rd day he is not aggressive AT ALL.

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