I have a 44 gallon pentagon tank with a floor space of 20" Length X 20" Depth X 24" Height. I plan on making it a beautiful reef tank during the next several months. For filtration I'm going to have 60 pounds of live rock, hopefully the select lalo Live Rock from drsfostersmith, and live sand, with a protein skimmer ( not sure on model yet). I would like to have several inverts, they are: An arrow crab, 2 halloween hermit crabs, 6 dwarf blue leg hermit crabs, 1 banded coral shrimp, 1 peppermint shrimp, cleaner shirmp ( AKA scarlet skunk), blue tuxedo pincushion urchin, A fighting conch or two, 6-12 bumble bee snails, 5 super tongan nassarius snails, a Feather duster, 1 or 2 super colored corcea clams, a brittle or serpent sea star ( any reccomendations?), and 1 or 2 other species of star maybe blue linckia and thats it for inverts. Then for the fish species I was looking at: 1 Royal Gramma Basselet, 3 Catalina Gobies, 3 Purple Firefish, 1 Coral Beauty Angelfish, (Could I do a Yellow Tang, Powder Blue Tang, or Achilles Tang in the tank?), 1 Yellow tail Damselfish, 1 Fridmani Pseudochromis, and a species of filefish that I saw in a TFH magazine I think that could be kept in a reef tank no problem. I don't want anyone to think that I'm just selecting random fish and inverts, but I have spent quite a bit of time looking for fish and inverts that I think are pretty peacefull and can coexist, but if you see any problems please let me know. Now the parts where I REALLY need help is lighting and coral selection. I would like to get several really beautiful corals, but I have no idea how far apart you are supposed to space each one, and whether or not they can coexist. Some corals I really like are: the short tentacle plate coral, white bubble coral, favites brain coral, Green fluorescent mushroom coral, Ricordea mushroom blue/green caribbean, tree corals, super colored polyp colony, German Acropora, Blastomussa merletti, Green Birds Nest Coral, Red Candy Cap Coral, Purple Passion Tree Coral. I have never understood all of the different types of lighting and really anything about them, but they're a nessecary evil for the reef tank, so does anyone have any advice? If you need the Scientific names for any of these don't research it you have done enough work reading this so just let me know and I'll get it.