How many fish is too many? Tank Stocking

[Tigweldpro]

How many fish can be put in a tank? There are sooo many variables that contribute to answering this question.

As long as you can keep nutrients at bay can you keep adding fish?

My current fish list for my 90g is....

1 yellow tang
4 percula clowns
1 yellow corris wrasse
2 bangaii cardinal
1 yellow watchman goby
1 tiger pistol shrimp
2 green spotted mandarin
2 skunk cleaner shrimp
1 lawnmower blenny
1 blue hippo tang(still in QT will be adding soon)
1 leopard wrasse(still in QT will be adding soon)

I still want to add

1 copperband butterfly
1 foxface rabbitfish
1 bluestreak cleaner wrasse
1 melanurus wrasse

I'm running a phosban 150 1/2 full of biopellets and it keeps nitrate between 5-10ppm doing 5g waterchange once a week. Phosphate stays around .03-.1ppm
feeding 2-3 cubes PE mysis small piece of nori & small pinch of NLS marine pellets daily.