How many wrasses is too many?

[Chaloupa]

Tank; 150g, 5 foot long, couple hundred lbs LR, 3+ inch sandbed

I have a love of wrasses.....AND with the amazing ones that J&L got in I find myself wondering how many is too many? I know it basically depends on the fish etc but a guideline from others who have many would be appreciated...please, if you don't have true knowledge or experience of my question refrain from answering

Fish load right now;
3" Naso Tang
3.5" Sailfin Tang
Hawaiian Flame Wrasse (just got from J&L and is gorgeous!)
Solar Wrasse (just got from J&L and is gorgeous!)
Leopard Wrasse
Carpenters Wrasse
Cleaner Wrasse
Neon Goby
Trimma Goby
African Flameback Angel