| No. | All keepers listed by when they started keeping this species. The longest an individual has been kept is 7 years, 11 months. |
| 1 | daniel60 (k: 3) since 2007-01-27 to 2013-11-19, that's 6 years, 9 months |
| 2 | Jeffww (k: 6) since 2013-01-08 to 2013-02-01, that's 0 years, 0 months; who writes, "Being kept with C. brevirostris, formerly a subspecies of Corydoras melanistus, B. imitator's target species." |
| 3 | monkiecat (k: 2) since 2013-12-06 to 2015-12-06, that's 2 years, 0 months |
| 4 | Mol_PMB (p: 2, k: 7) since 2016-02-21 to 2017-05-16, that's 1 years, 2 months |
| 5 | dmcat since 2016-12-07 to 2024-12-03, that's 7 years, 11 months |
| 6 | flipperfeet since 2018-03-18 to 2019-12-24, that's 1 years, 9 months |
| 7 | Gulper since 2018-07-08 to 2020-07-08, that's 2 years, 0 months |
| 8 | jakethedog24 since 2023-12-12 to 2024-12-03, that's 0 years, 11 months |
| 9 | N_F_S since 2024-04-08 to 2024-12-03, that's 0 years, 7 months |
