Moklembembe are the smallest naturally occurring type, but they’re also pretty rare and it’s highly unlikely that the OP has that. It’s most likely an albino Senegal or CB reg Senegal. You may have seen the outlier 12”’albino Senegal but 6-8” is the most typical. But if you know that sens have the potential to get to that size, why did you recommend one be kept in a 37g? Especially considering the activity level of a sen.Actually p. Moklembembe WC is the smallest species rarely crossing 8” I’ve seen a foot long albino long fin senegalus before