What fish off this list can I have in a 75 gallon peaceful community?

[Gamegurl564]

Bolivian rams are a different type: they’re adapted to cooler temps. Also more peaceful. Not quite as pretty, but still beautiful.

They are hardier than the Germans as well.
Make sure to have a sandy substrate for the Ram's and the Cory's. Rams will sift through the sand.

 

[anewbie]

don't mix dwarf cichild with cory/pleco; if you insist on mixing them only pick one species and i personally would go with borelli for a number of reasons including adapatability to different type of waters/temp and not quite as badly inbred as cockatoo and most docile of the species you mentioned.
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Generally avoid domestic dwarf gourami (wild caught are fine but they won't have the strong colours most people want).
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Other than that i don't see any major issues.

 

[sharkweek178]

don't mix dwarf cichild with cory/pleco; if you insist on mixing them only pick one species and i personally would go with borelli for a number of reasons including adapatability to different type of waters/temp and not quite as badly inbred as cockatoo and most docile of the species you mentioned.
-
Generally avoid domestic dwarf gourami (wild caught are fine but they won't have the strong colours most people want).
-
Other than that i don't see any major issues.

To expand on the dwarf gourami issue for the OP. Because of overbreeding, dwarf gourami are lousy with Iridovirus. Which is 100% fatal and can't be treated.