| No. | All keepers listed by when they started keeping this species. The longest an individual has been kept is 32 years, 3 months. |
| 1 | Redcatman since 1975-05-27 to 2007-09-22, that's 32 years, 3 months; who writes, "This fish was reported to be 10 years old when donated to me. In the time I had it, it only grew about 20mm. Other than that, there was no change in appearance before it suddenly died." |
| 2 | ali12345 since 1992-01-16 to 2015-08-20, that's 23 years, 7 months |
| 3 | Oliver D. (k: 10) since 1995-07-07 to 2009-09-01, that's 14 years, 1 months; who writes, "Spawned..." |
| 4 | synodont_fan (k: 2) since 2004-01-01 to 2009-04-23, that's 5 years, 3 months; who writes, "Unlike the pictured specimen, mine have a very black body color, so that the spots are barely noticeable. Mine seem to hide a lot." |
| 5 | lasteeves (k: 4) since 2005-05-26 to 2008-01-01, that's 2 years, 7 months |
| 6 | brettjurgens since 2006-10-03 to 2010-01-27, that's 3 years, 3 months |
| 7 | synoguy since 2007-01-21 to 2009-01-21, that's 2 years, 0 months |
| 8 | natefrog since 2007-01-21 to 2009-01-21, that's 2 years, 0 months |
| 9 | brettwms75 since 2007-02-06 to 2010-09-21, that's 3 years, 7 months; who writes, "Mine gets along great with my 2 Knife fish." |
| 10 | caudalis since 2007-03-06 to 2016-05-11, that's 9 years, 2 months |
| 11 | Silurus since 2007-03-11 to 2009-03-11, that's 2 years, 0 months |
| 12 | gage since 2007-03-20 to 2009-03-20, that's 2 years, 0 months |
| 13 | vriesea (k: 2) since 2007-04-07 to 2009-04-07, that's 2 years, 0 months; who writes, "Boutht pair at auction at SVAC for $6." |
| 14 | Landlubber since 2007-09-24 to 2011-05-07, that's 3 years, 7 months |
| 15 | Pseudospecialops since 2007-10-07 to 2009-10-07, that's 2 years, 0 months |
| 16 | jippo (k: 11) since 2007-11-01 to 2013-10-07, that's 5 years, 11 months |
| 17 | MC_Emily since 2008-03-16 to 2010-03-16, that's 2 years, 0 months |
| 18 | Gootch since 2008-03-17 to 2010-03-17, that's 2 years, 0 months |
| 19 | geekshow (p: 2, k: 2) since 2008-06-01 to 2010-09-02, that's 2 years, 3 months |
| 20 | Bartman since 2008-07-17 to 2010-04-08, that's 1 years, 8 months |
| 21 | OddOscar since 2008-09-01 to 2011-07-27, that's 2 years, 10 months |
| 22 | Ebisu since 2008-09-08 to 2010-09-08, that's 2 years, 0 months |
| 23 | ray_c (p: 3) since 2008-09-14 to 2010-09-14, that's 2 years, 0 months |
| 24 | doesdavid since 2008-10-10 to 2010-10-10, that's 2 years, 0 months |
| 25 | chralis since 2008-12-19 to 2010-12-19, that's 2 years, 0 months |
| 26 | jquijano since 2009-01-05 to 2011-01-05, that's 2 years, 0 months |
| 27 | pmbooper (k: 2) since 2009-01-25 to 2011-01-25, that's 2 years, 0 months; who writes, "one 6 inch syno in 1000 gal-moving 4 inch syno to 200 gal" |
| 28 | andy.cole94 since 2009-02-19 to 2011-02-19, that's 2 years, 0 months |
| 29 | griffl since 2009-04-20 to 2016-02-20, that's 6 years, 10 months; who writes, "In tank with Syno Aterrima. Both are territorial and hang around driftwood log." |
| 30 | Gallywags since 2009-06-09 to 2011-01-01, that's 1 years, 6 months |
| 31 | oliv67 (k: 3) since 2009-06-30 to 2011-06-30, that's 2 years, 0 months |
| 32 | raymond (k: 3) since 2009-09-19 to 2011-10-10, that's 2 years, 0 months; who writes, "are in a tank of malawi cichlids, but rarely make an appearance." |
| 33 | danny.450 since 2010-01-31 to 2012-01-31, that's 2 years, 0 months |
| 34 | danlinn since 2011-01-08 to 2013-01-08, that's 2 years, 0 months |
| 35 | matt836 (p: 2) since 2011-02-19 to 2013-02-19, that's 2 years, 0 months |
| 36 | VonKarppis since 2011-03-21 to 2013-03-21, that's 2 years, 0 months |
| 37 | Birger (k: 2) since 2011-04-16 to 2014-06-10, that's 3 years, 1 months |
| 38 | Buddiechrist since 2011-06-06 to 2013-06-06, that's 2 years, 0 months |
| 39 | nerdoutlaw since 2011-08-29 to 2014-02-19, that's 2 years, 5 months |
| 40 | james gilbertson (k: 3) since 2011-08-31 to 2014-03-10, that's 2 years, 6 months; who writes, "Very friendly fish, out of all my synos this one feels the most comfortable in daylight conditions" |
| 41 | DeepFriedIctalurus since 2011-09-04 to 2013-09-04, that's 2 years, 0 months |
| 42 | Dinnie since 2011-09-13 to 2014-03-10, that's 2 years, 5 months |
| 43 | clydeboy since 2011-09-30 to 2014-02-16, that's 2 years, 4 months |
| 44 | nowayhere since 2011-12-18 to 2013-12-18, that's 2 years, 0 months |
| 45 | Sargy60 since 2012-01-28 to 2014-01-28, that's 2 years, 0 months |
| 46 | ellohcee since 2012-02-05 to 2014-02-05, that's 2 years, 0 months |
| 47 | jakkals since 2012-03-18 to 2012-04-14, that's 0 years, 0 months |
| 48 | anglerfishuk since 2012-03-31 to 2014-04-02, that's 2 years, 0 months |
| 49 | Ysori (k: 2) since 2012-11-10 to 2014-11-10, that's 2 years, 0 months |
| 50 | Dudders since 2013-02-11 to 2015-02-11, that's 2 years, 0 months |
| 51 | Josiemetzner since 2013-07-14 to 2015-07-14, that's 2 years, 0 months |
| 52 | JessM315 since 2013-08-06 to 2015-08-06, that's 2 years, 0 months |
| 53 | PiggyCutie since 2013-11-05 to 2014-01-10, that's 0 years, 2 months |
| 54 | thecameraguy since 2013-12-18 to 2016-03-12, that's 2 years, 2 months |
| 55 | fi5thelement since 2014-02-01 to 2021-01-18, that's 6 years, 11 months |
| 56 | Shipmonkey since 2014-07-03 to 2016-07-03, that's 2 years, 0 months |
| 57 | Johnny579 since 2014-11-12 to 2016-11-12, that's 2 years, 0 months |
| 58 | indeliKate since 2015-04-05 to 2017-04-05, that's 2 years, 0 months |
| 59 | apo1980 since 2016-02-10 to 2018-02-10, that's 2 years, 0 months |
| 60 | Reteos since 2016-03-20 to 2018-09-12, that's 2 years, 5 months |
| 61 | caninesrock since 2017-06-28 to 2017-06-28, that's 0 years, 0 months |
| 62 | angerygrover since 2018-04-16 to 2020-04-16, that's 2 years, 0 months |
| 63 | OEriksen since 2018-06-12 to 2020-06-12, that's 2 years, 0 months |
| 64 | ianmarg (k: 6) since 2018-11-26 to 2021-08-25, that's 2 years, 8 months |
| 65 | WadeNCreeks since 2019-03-27 to 2022-03-28, that's 3 years, 0 months |
| 66 | edds since 2020-01-18 to 2024-04-19, that's 4 years, 3 months |
| 67 | Koltsix since 2020-08-31 to 2024-04-19, that's 3 years, 7 months |
| 68 | ayrgroup since 2020-09-24 to 2022-09-24, that's 2 years, 0 months |
| 69 | Quandale since 2023-03-12 to 2023-12-21, that's 0 years, 9 months |
| 70 | N_F_S since 2024-04-08 to 2024-04-19, that's 0 years, 0 months |
