1- dendro
2- Watermelon Chalice? Some kind of chalice. I'm color blind sorry
3- Acan
4- Some other chalice
5- Favia
6- Acan?
7-Paly
8- Chalice
9 - I dont really know what im looking at... Coraline?
10 - Look slike a rhodactis but its some kind of coralimorph
11- No idea. Sorry :\ Perhaps some kind of brain?
12- Frogspawn
13 - Favia?
14 - Cyphastrea
15- dendro
16 - Dendro
17 Finger leather?
18 Kinda look like green star polyps
19 Crocea clam
Correct me if im wrong... But um... Dendro's need to be spot fed mysis, or brine, or krill.
On the topic of the lighting situation, since your tank is pretty deep, T-5's would be more efficient since thier small diameter penetrates deeper. ( from what i remember) If it starts to look crappy and pale, try moving it up.
T5s technically penetrate the same, however, when you get the overlap from other lamps, it does intensify the overall amount of light reaching the bottom, making them more intense at lower depths where overlap occurs.