(It will be for a 450 Gallon tank which is 4ft by 6ft by 30 inches; with a 130 gallon sump, 70 gallon refugium, The corals will be mixed, hardy and moderate light requirements including zoas and some LPS at bottom, SPS for middle to top, Rock work is minimalistic. Flow will be about 20x, Lighting is about 100 PAR at bottom and 400 PAR at the top of rock work, Good hiding spaces all around, Sand bed is variable with areas of 1 inch to 3 inch depths )
This will be difficult to evaluate because while you have a lot of gallonage, your tank dimensions with only six feet of length provide some difficulty.
Current Residents:
1 Maroon Clownfish
1 Lyretail anthia (female currently converting to a male)
2 Bartlett anthia (male and female pair)
1 Diamond goby
1 Engineer goby
1 Ornate wrasse
Intended Fish Stocking list
Bartlett Anthias - 2-3 females, small
??? Dispar Anthias - 2-5 females, small
Lyretail anthias - 2-3 females, small
Resplendant anthias Or Sunset Anthias - 2-5 female small
??? Square back anthers 2-3 small females
Anthias will be no problem but remember they really need to be fed multiple times per day
Bicolor or Midas Blenny
???Reef with caution butterfly
Copperband Australian is more likely to be successful but these are NOT reef safe necessarily
Yellow long nose One of these is reef safe, but the other species is not
??? Yellowhead jawfish 2-3 large
Blue Dot Jawfish needs cooler temperatures since they are collected in the sea of cortez
??? Magnificent or Gold spotted or Yellow blotch Rabbitfish
??? Tiger watchman goby
??? yellow watchman goby
??? Hi fin Red Banded goby
??? Neon blue cleaner gobies 2-3
??? Miniatus grouper (towards the end) eats fish
long nose hawkfish not shrimp safe
Pacific Red stripe hogfish or yellow candy hogfish not shrimp safe
Tangs: since tangs are more dependent on tank length, these will be difficult despite the gallonage
Yellow tangs 2-3
??? Nasotang or blonde naso tang needs a longer tank
Powder blue tang
Kole yellow eye tang
??? orange shoulder tang
Tomini tang
Chevron Tang
Powder brown tang
It is difficult to evaluate the above since as tangs mature their need for territory increases and tangs inherently do not like other tangs since they occupy the same ecological niche. As such, long term, there may be issues
Wrasses: all of these are prolific jumpers; in this sized tank, the number should be ok but you have a couple that are on the aggressive side
Red Velvet Fairy wrasse
long fin fairy wrasse
Whip fin fairy wrasse
Orange back fairy wrasse
hooded fairy wrasse
Lineatus wrasse
Rhomboidalis wrasse
Line spot flasher wrasse
Carpenters wrasse
??? Marine betta primarily nocturnal; can eat small fish
??? Harlequin tuskfish not invert safe
??? Queen angelfish must be the only angelfish
??? Cuban hogfish