all of the damsels need to go (that includes the chromis and clown). the PJ's are OK.
you're confusing sweeper tentacles with normal tentacles. for reference, LPS such as
Euphyllia and
Plerogyra have pretty nasty sweepers. polyps are fine. i don't have it handy, but i have a really cool pic of our bubble stinging some paly's...i'll see if i can find it when i get home.
the Korallias have actually amputated SH tails in the past (SH will pretty much hitch to anything that strikes their fancy), so unless you DIY some covers, change to the nano model.
you can probably pull your tank down quite a bit with fans blowing across the water surface of the sump and/or DT, but if you run fans, remember that your evap will increase quite a bit, so have some top-up water ready.
both of our SH systems have lots of macro, and thus natural hunting grounds/pod havens for the SH to supplement their feedings. there really isn't any way around the daily feeding thing other than to really fatten up the SH and introduce a bunch of appropriately-sized SW feeder shrimp into the system just prior to leaving. the risk here is having the SH decide they like live food better than frozen, and you either need to re-train them, or give in and feed them live food for life. that being said, true CB SH are weaned to frozen at an early age, so they're less likely to "revert" to live food.
as far as obtaining the SH, i'd get true CB specimens from a reputable breeder or hobbyist breeder. they cost a bit more than the net pen-raised SH you often see at the LFS, but they are WELL worth the price in terms of health, longevity, and not having to prophylactically treat them for parasites, and they come to your door greedily eating frozen mysis. personally, Dan over at
http://www.seahorsesource.com is the only place i get my SH.
HTH
