I agree with this.
My rule of thumb with cichlids, is a "minimum" of 10 gallons per inch of adult.
And this really only applies to lazy lurker types, for something pelagic like Pbass, that need room to run, more is not unreasonable.
Also others may disagree but since your pbass is already stressed adding the sd's may make feeding worse. They are aggressive eaters (like lawn mowers really) between them and your oscar the pbass might not het his share.
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