Hi all as an update
Iām thinking the following fish for my tank
Bolivian ram
Leopard Corydoras catfish
Pearl gourami
Rummy nose tetra (I know these are little more difficult)
Are these a good option? And more importantly would they make good tank mates?
Thank you all In advance
I asked about tank dimensions previously and they haven't been posted, so I will assume (please correct me if I'm mistaken about this) that this tank has a length (side to side across the front) of 48 inches (120 cm).
Given that , and your soft water, the species mentioned are fine. Normally cichlids (the Bolivian Ram) and gourami are not good together but here you have two of the most peaceful species so it should work.
The Bolivian Ram is best as a solitary fish, just the one. Males are territorial, and the entire tank space will be considered his territory if you get a male. Other species are not normally bothered, but other rams could be a disaster waiting to happen.
The Pearl Gourami is nice in a group of three or five, with one male and two females, or two males and three females. These will remain in the upper half, with the Ram in the lower half so that is a good balance.
The rummynose tetras are fine, in a group of at least 15 up to 20. This tetra always does better with more, and it is a tight shoaling species.
The cories are good (you have sand I believe) in a group of 12-20. They can be one species, or a mix; if the latter, try to get 5 of a species if you can, so 15 could be three species. They chum together, but having more of each species is advisable.