Mostly SA community- 75G or 90G or ???

I currently have a 75G tank. I'm trying to decide whether this is sufficient, or whether I need to go larger- perhaps to a 90G.

The stock would be:

2 angelfish
1 festivum
4 geos pindare
1 a. heckelii
2 ancistrus (small variety, stays under 4 inches)

plus

1 or 2 of the following groups: 8 m. praecox, 7 m. boesemani, 8 pristella tetra, 8 black phantom tetra, 5 dalmation mollies

1 or 2 of the following groups: 8 corydoras aeneus, 8 corydoras sterbai


Is a 75G sufficient? Do I need to upgrade? If so, will a 90G be enough?

Advice on which and how many of the groups of fish listed under the cichlids/ancistrus, would also be welcome.

Thanks!

Thanks for the response.

I've read the same about A. Heckelii, but fortunately, mine seems to be close to the bottom of the pecking order giving me more flexibility. If he gets out of hand, the back-up plan would be to put him in with my O instead.