Its nice to hear your anemones are doing good of course 5 months can't really be considered a success. Like I already said, twice the light is much better on twice the tank size. I agree, If your going to do anemones you have to base the tank around them. People don't relize these thing move around and can sting or get stung by corals..
I'm sure you've read this
"A recent survey of reefkeepers conducted by Joyce Wilkerson found that among a couple hundred respondents only 5% of hobbyists with *2-5 years* of reefkeeping experience had managed to keep their anemone alive for 2 years or more (this survey was specific to the clownfish/anemone host species Entacmaea, Heteractis, Stiochodactyla, Macrodactyla & Cryptodendrum). That's not very encouraging is it? To make it worse, among hobbyists with less than 2 years of experience, nearly half of the anemones purchased were dead within 3 months -- overall only 1 in 13 anemones survived for 3 years or more and only 1 in 32 anemones survived for 5 or more years in captivity (which by most accounts is considered success in this hobby). Even if we consider 5 years to be a ripe old age for these animals in an aquarium (this is roughly the equivalent of considering rearing a human to 1 year as being a "success"), only 3% of anemones purchased ever make it to this age (and if you read Shane's article entitled Dawn of the Dead, you should begin to realize that only a small percentage of "difficult animals" even survive long enough to make it home into an aquarium). This survey included many highly experienced and profession reef keepers. If I remember correctly, Alf Nielson topped this list of experienced aquarists with 32 years of reef tank experience, and the other respondents included many of the people who write the aquarium texts that we all refer to when faced with some difficulty in our own aquarium. Let me reiterate this despite the general expertise of the people who participated in the survey, only 5% of people can keep an anemone alive for more that 2 years! That is pretty abysmal for an animal with a natural life span of hundreds of years; *especially* given that, according to Daphne Fautin (co-author of the popular book Anemone Fishes and their Host Sea Anemones), removal of these anemones and their clownfishes is causing serious changes in the natural communities that she studies (and I heard rumors that she has recently become an active advocate of trying to outlaw the collection and importation of anemones). In their book, Fautin and Allen mention that some populations they once studied in the Philippines have become extinct as a result of collection and the habitat destruction associated with dynamite/cyanide fishing"
