Be careful with the Green Brittle Stars ~ they can be quite predatory, and are known for eating small sleeping fish. The Black Brittles (we have 2 huge ones), and Serpent stars are known for being more docile, and they are scavengers/detritus eaters. However, if you buy a Brittle or Serpent, just know that they are primarily nocturnal, and you will very
rarely see them at all. We only see our Brittles when I do my flashlight-peeking at night.
We do have a Blue Linckia, and I love this star. We've had him since Sept. of '02, and it is perfectly healthy. However, we do have about 250lbs of mature LR
in the main tank. I wouldn't recommend one for a small tank. Also, they can be a nightmare to acclimate. If you have a very reputable LFS
you can have get one for you, and if they would be willing to hold it for a couple weeks, I might go that route. I'd try and be sure that their salinity, temp, and pH are as close to yours as possible. We were lucky and bought ours off a friend who kept his tanks at identical parameters to ours. Even then, I acclimated about 6 hours. If you can get past the acclimation, and have a large enough tank (enough LR
), I'd absolutely recommend one. Ours is out a lot, and the color is fantastic.
If the orange Linckias are easier - I'd be tempted to go with that.
General rule of thumb (does not always hold true!) - smooth skinned stars = reef safe. Knobby/bumpy stars (like Choc. chip) = not reef safe.