Quick question on Chocolate gourami’s

The minimum tank size would probably be a 20gal since these gouramis need to be kept in groups and also the larger tank size would keep things more stable so there would be less of a chance of deadly pH and temp changes.
 
A speces tank with a group of 6-8 chocolates is reccomended so you'll probably need quite a large tank for these 3" or so fish. They also require quite a low pH and can be incredibly shy. I would say a few croakers are ok but if you add too many, they'll probably end up terrorising (or at least annoying and therefore stressing) the chocolates which are very fragile fish.
 

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