D-nak,
Not intending to be harsh, but anemones are not hardy creatures by any means. My point is that if you read the polls on-line, 1-3 years is toward the high end of how long people have successfully kept anemones in their tanks (there are some exceptions). Keeping a bubble tip healthy for 2 years (and longer) is quite doable, but it is the equivalent of keeping a parrot with a lifespan of 6o years healthy, eating, reproducing for a couple of years. The true test is keeping the anemone alive for closer to its natural lifespan and having the discipline to care for an animal for its entire lifespan without switching hobbies or selling tanks. Reefkeeping technology has evolved, but not that much from 1994 (the first printing of Sprung's TRA - people were using berlin system, mh lights, live rock, live sand, heavy skimming back then and still questionable luck with anemones). Nonetheless, many people still buy anemones today and throw them into unsuitable environments...in a tank with exposed powerheads for example.