[Delphinus]

I voted 6 months to a year, because that's how long I've had my blue linckia so far.

It does not bother anyone in the tank. But I have no idea what it eats. So to a certain extent I keep expecting the rug to get pulled out from under me, at any moment.

I did a very slow drip acclimation, about 16 hours in all (in a container in the sump to maintain temperature). I also waited at least 2 weeks after the LFS had brought them in. From what I read, they are VERY sensitive to different water (i.e., going from one tank to another).

On a more sober note, I could vote again a second time, with "3 to 6 months" for a burgundy linckia (not really a linckia, I forget the genus/species but looks very similar). It unfortunately did not live beyond that timeframe. It eventually fragged itself - each arm twisted off and there were these disembodied arms crawling around the tank for a while. But they eventually got smaller and smaller and eventually just disappeared.

So my stats are more along the lines of 50% success (but only "so far") and a 50% failure ("for sure"). Perhaps not the most encouraging results.