| No. | All keepers listed by when they started keeping this species. The longest an individual has been kept is 23 years, 2 months. |
| 1 | richb (k: 2) since 2000-03-20 to 2023-06-08, that's 23 years, 2 months; who writes, "This pair lived pretty happily in the tub until just a few months ago. One of the pair started appearing a bit tattered. I pulled it and it is recovering in a 55 gallon tank. I would like to add them to the 900 gallon sometime and see if they would spwan. Very cool, but shy. The fish I removed from the tub is now in the 900 awaiting its partner.2-2-2018: I moved the pair to the 1,000 gallon tank. They have been in this tank for proably a year now and are getting along okay. Fat and sassy." |
| 2 | Julie (k: 10) since 2002-05-21 to 2010-05-21, that's 8 years, 0 months; who writes, "Appears to be two color types. One is more of a tan/light grey body and the other is a darker gray almost black body with a darker gray belly. Fish are distributed in 3 different 75 gallon tanks." |
| 3 | lasteeves since 2006-05-26 to 2014-05-26, that's 8 years, 0 months |
| 4 | Richard B (k: 3) since 2006-09-06 to 2011-02-05, that's 4 years, 4 months; who writes, "Two small individuals which are tank bred from the spawnings reported in the threads in PC. Clearly one of the individuals is superior to the other & bosses the other at times. At 6 May 07 they are both around 47mm TL & still show the small dark spots " |
| 5 | synoguy since 2007-02-19 to 2009-02-19, that's 2 years, 0 months |
| 6 | caudalis (p: 4, k: 2) since 2007-03-06 to 2012-01-05, that's 4 years, 9 months |
| 7 | synodont_fan since 2007-04-20 to 2009-04-20, that's 2 years, 0 months |
| 8 | derrickrscott since 2008-05-30 to 2010-05-30, that's 2 years, 0 months |
| 9 | unblinded (k: 4) since 2008-09-30 to 2018-09-01, that's 9 years, 11 months; who writes, "Got the 1st in October of 2008. Got 2-4 on 9/17/12." |
| 10 | toby since 2008-12-04 to 2013-12-31, that's 5 years, 0 months |
| 11 | michele since 2009-04-22 to 2011-04-22, that's 2 years, 0 months |
| 12 | Majolica since 2009-09-03 to 2011-09-03, that's 2 years, 0 months |
| 13 | dasfocus198720 since 2009-09-30 to 2011-09-30, that's 2 years, 0 months |
| 14 | zigster since 2010-05-25 to 2011-01-06, that's 0 years, 7 months |
| 15 | Miss Dib Dabs since 2010-07-19 to 2012-07-19, that's 2 years, 0 months |
| 16 | arapaimag since 2010-12-03 to 2013-06-23, that's 2 years, 6 months |
| 17 | SHEAG since 2011-04-20 to 2013-04-20, that's 2 years, 0 months |
| 18 | maynard1982 (k: 2) since 2011-07-09 to 2013-07-17, that's 2 years, 0 months |
| 19 | nerdoutlaw (k: 2) since 2011-08-29 to 2013-08-29, that's 2 years, 0 months |
| 20 | james gilbertson since 2011-08-31 to 2014-03-10, that's 2 years, 6 months; who writes, "Again a very shy fish, so stunning but only comes out when i turn off the lights for the night, bought from a garden centre as a common syno, result :)" |
| 21 | amiidae since 2012-02-09 to 2014-02-09, that's 2 years, 0 months |
| 22 | zipper since 2012-02-19 to 2014-02-19, that's 2 years, 0 months |
| 23 | taylor1410 since 2012-03-31 to 2014-03-31, that's 2 years, 0 months |
| 24 | shooter50014 since 2012-04-25 to 2014-04-25, that's 2 years, 0 months |
| 25 | Ostafrika-Barsche since 2012-06-03 to 2014-06-03, that's 2 years, 0 months |
| 26 | NeilB since 2015-04-18 to 2017-04-18, that's 2 years, 0 months |
| 27 | Long Barbels (k: 2) since 2015-09-03 to 2025-03-13, that's 9 years, 6 months; who writes, "Have had for ~ a month. 3" specimen. One of the most active & least shy Synodontis in my collection and a voracious eater. Probably could hand feed. For a deep water Synodontis it surprised me to see him eating flakes upside down off surface." |
| 28 | BiggNick916 since 2016-01-02 to 2018-01-02, that's 2 years, 0 months |
| 29 | Slavi (k: 5) since 2016-06-04 to 2024-01-10, that's 7 years, 7 months; who writes, "Kept 7 (4m/3f) Synodontis granulosus together for several years. They did very well in this group and shows signs of breeding behavior (see Youtube video from Tanganyika.nl). They all had their own hiding place in a 300x80x75cm aquarium. Other fish were Cyphotilapia gibberosa, Synodontis sp. PWZ(later replaced by Synodontis irsacae), Altolamprologus compressiceps. Sold the group of 7 granny’s 10-aug 2019. Since 31-1-2021 I am keeping a S. granulosus male again. Added 4 younger specimens (gender unknown) on 22-1-2022." |
| 30 | r7man (k: 2) since 2017-01-03 to 2019-01-03, that's 2 years, 0 months |
| 31 | biggnick916 since 2017-09-20 to 2020-09-01, that's 2 years, 11 months |
| 32 | Hsapsed (k: 2) since 2018-04-14 to 2020-08-04, that's 2 years, 3 months |
| 33 | Iamfish since 2019-01-18 to 2021-07-05, that's 2 years, 5 months |
| 34 | Nejat22 since 2019-05-02 to 2022-07-05, that's 3 years, 2 months |
| 35 | ianmarg since 2020-02-20 to 2022-10-26, that's 2 years, 8 months |
| 36 | jcover since 2020-06-13 to 2022-06-13, that's 2 years, 0 months |
| 37 | jakethedog24 since 2023-12-12 to 2025-03-13, that's 1 years, 3 months |
