160 stocking advise

[Sasq40]

looking for some helpful tips for stocking advice, i have a 160 bow front with 20 gallon fuge and a 55g sump. Right now im stocked with
1x large hippo tang
1x yellow tang
1x sixline
1x lawnmower
1x yellow tail damsel
1x blood shrimp
3x lyretail
2x false clown fish
x2 blue chromis

planning on adding a few more chromis and a manadarin, i had one before for about 6 months but she didnt make the upgrade to the big tank a few month ago