Opinions on current bioload?

[d3rryc]

Hey, there!

I'm looking for some input regarding the current bioload on my tank. I think I'm approaching my fish limit, but I'd like some of the wiser heads to chime in. Trying to exercise some discretion, here, and leave myself a bit of wiggle room rather than peg the needle regarding the number of fish in the tank...

Tank specs:
140-gal (60x30x18)
~150 lbs of live rock
EuroReef RS 135 skimmer
30-gal sump (runs with 10-15 gals)
Mag9 return
Two Koralia 4s
One Koralia 2s
Sequence Dart driving a closed loop through two SCWDs

Fish stock:
5" Blue jaw trigger (1)
4" Yellow tang (1)
4" Lawnmower blenny (1)
3-1/2" Coral beauty (1)
2-1/2" Royal gramma (1)
2" Chromis (3)
2" Onyx perculas (2)
2" Mandarin (1)

Note: None of my gear has any mods. All are out-of-the-box.

Thanks much!
Derry