| No. | All keepers listed by when they started keeping this species. The longest an individual has been kept is 12 years, 1 months. |
| 1 | arapaimag (k: 4) since 2001-07-27 to 2013-09-10, that's 12 years, 1 months |
| 2 | synodont_fan since 2005-01-01 to 2009-04-23, that's 4 years, 3 months; who writes, "Mine is around 6 inches and quite aggressive; it patrols the center of the tank and most of the other synodontids stay out of its way. I like the body coloration - a two-tone pattern going from silvery on the bottom to light brown on top." |
| 3 | clunkster since 2007-04-09 to 2009-04-09, that's 2 years, 0 months |
| 4 | Devangel since 2007-04-27 to 2009-04-27, that's 2 years, 0 months |
| 5 | Redcatman since 2007-05-27 to 2008-01-14, that's 0 years, 7 months |
| 6 | Chrysichthys (k: 2) since 2007-07-15 to 2009-07-15, that's 2 years, 0 months |
| 7 | einstein-a-go-go since 2007-08-04 to 2009-08-04, that's 2 years, 0 months |
| 8 | kvnbyl (k: 2) since 2007-09-03 to 2009-09-03, that's 2 years, 0 months |
| 9 | Junttis since 2007-12-18 to 2009-12-18, that's 2 years, 0 months |
| 10 | syno-kev since 2008-03-04 to 2012-02-28, that's 3 years, 11 months; who writes, "My biggest syno at about 8 inches she is always out and active and very calm with the other fish" |
| 11 | tezr since 2008-09-16 to 2011-05-07, that's 2 years, 7 months |
| 12 | Cornuta since 2008-10-17 to 2012-03-09, that's 3 years, 4 months |
| 13 | jippo (k: 6) since 2009-01-05 to 2020-01-07, that's 11 years, 0 months |
| 14 | Viktor Jarikov since 2009-01-10 to 2011-04-01, that's 2 years, 2 months; who writes, "Definitely a hybrid, perhaps of notata with smth else; gentle, elusive, peaceful with other synos; eats all" |
| 15 | Camaroahopp since 2009-03-28 to 2011-03-28, that's 2 years, 0 months |
| 16 | chalky76 since 2009-05-20 to 2011-05-20, that's 2 years, 0 months |
| 17 | lissaspence since 2009-08-06 to 2011-08-06, that's 2 years, 0 months |
| 18 | TheFishGuy since 2010-08-19 to 2013-03-22, that's 2 years, 7 months |
| 19 | Clown Crown since 2011-12-28 to 2018-12-06, that's 6 years, 11 months |
| 20 | anthonyking since 2012-02-03 to 2014-02-03, that's 2 years, 0 months |
| 21 | N0body Of The Goat since 2012-02-28 to 2021-08-19, that's 9 years, 5 months; who writes, "Beautiful 10+ spot specimen, quite diurnal and very tolerant of other Synos in tank" |
| 22 | lasteeves since 2012-05-26 to 2011-05-26, that's 1 years, 0 months |
| 23 | Anthony King since 2012-11-22 to 2014-11-22, that's 2 years, 0 months |
| 24 | Kryptic since 2015-01-30 to 2018-03-31, that's 3 years, 2 months |
| 25 | Long Barbels since 2015-02-24 to 2015-10-02, that's 0 years, 7 months |
| 26 | protopterus since 2017-03-14 to 2019-03-14, that's 2 years, 0 months |
| 27 | faxling since 2017-03-23 to 2025-04-30, that's 8 years, 1 months; who writes, "Pricken" |
| 28 | BullFishkeeping since 2017-09-04 to 2017-09-04, that's 0 years, 0 months |
| 29 | jodilynn since 2018-11-01 to 2022-06-13, that's 3 years, 7 months; who writes, "A little 1 inch juvenille I have named "Sharkey". On the skinny side so I will have to pay close attention to him. Currently residing in my heavily planted 20 gallon hex with 4 Threadfin Rainbows, a King Betta, 3 green corys, a Farowella, and 3 huge Mystery snails." |
| 30 | ianmarg since 2019-01-19 to 2022-05-05, that's 3 years, 3 months |
| 31 | qui2424 since 2021-05-30 to 2023-05-30, that's 2 years, 0 months |
