Impressed that you have the guts to do this tank in the Caribbean lol. Im in St. Thomas and our power is unreliable at best, not to mention brown outs and greys that kill electronics. Maybe Tola is better with that... our grid sucks lol! My advice from the caribbean is BACK ups and surge protectors and LOTS of them! Clearly you have the funds to afford this hobby in the Carib. so don't skimp. Have you thought about what would happen in the event of a hurricane and power off for a month... or more? I assume you have a diesel generator, would the chiller and powerheads pull too much? I have had 6 different systems over about 15 years in the states before I decided I needed to see the stuff in the wild every day but the power goes out her several times a week. Alas I can not afford a chiller on a divers/island guide salary lol.
Mixed feelings here about collection, but our oceans are fighting a much bigger battle and MO doesn't matter to you or your tank (I'm a realist). Ditch that lizard fish asap or you'll find your baby tang and butterfly missing. Also that stringy looking thing coming off your rock is a stinging creature called a ctenophore - come jelly looks likely. They are VERY powerful stingers and will kill any coral it comes in contact with. Green stuff looks like the beginning of Halimeda a calcium based coral - harmless but can suck up a lot of your CA so you'll need to monitor it and does accordingly.... which you will be doing always.
A little concerned that you mention that its not done cycling but you have livestock in there? Did I misread? Id assume your ammonia and nitrites are reading 0? I assume you know the basics going with a 220 so I hope I am not coming off condensing. I would also advise to make sure you know the species you're collecting. You mentioned something about "not reef safe"and then showed a flame scallop - they are reef safe in fact help filter/scrub your water although can be hard to keep alive in a captive system without dosing phytoplankton weekly. They need a loot of food to make it long term.
Your anemone hitchhiker is likely a warty anemone (Bunodosoma cavernata).
http://www.masa.asn.au/masawiki/index.php/Hitchhikers_Guide_to_the_Reef_Tank is a good place for hitchhikers, also my friend and amazingly knowledgeable reefer Bob Fenner's website
www.wetwebmedia.com is a MECCA of knowledge and information. One can spend months browsing the threads.
In order to give back, consider growing some of the Acropora species (once you're established of course) and once large enough, frag and repopulate. We have several projects over here for that specifically Acropora Cervicornis. I have three colonies, one is at about a lot in diameter now located in Hull Bay by my house.