Originally Posted by Mr. Guitar
Blue Linckia's can be kept in a 55 Gallon tank. I have one in mine and it's doin' great!!! I've had it over a month with no problems. Orange Linckia's are very hardy, in my opinion. I used to have one in my 30 Gallon. It lived over a year until somethin' killed all my inverts. If you want a Blue Linckia, get one that's from the Figi Islands. They are much harder than the others because of the warmer waters.
These stars take approximately 12 to 18 months to starve to death, so I am afraid you are not even close to claiming success yet I am afraid.
Blue Linckia are very very unlikely to survive long term in this size tank. If you want to risk it...I guess what is to stop you. But please note they in general can NOT be spot fed, and need a minimum of 150lbs of LR, IMO, to have even a good chance of survival. Rarely they may survive in certain smaller tanks, or by taking to spot feeding as above, but do not count on this. If you have no issues with an animal slowly starving to death (or dying in the first month from acclimation shock), then.... ***)
Any Linckia is a risk to keep in smaller tanks. You might be OK with Linckia multiflora which is sometimes blue, so long as this is a mature reef tank. But most other Linckia are still marginal...while people may have success now and then, it is important to understand that most do not.