All Fishes ⇒ My Fish Registered Keepers ⇒ Pseudomugil signifer

No. All keepers listed by when they started keeping this species. The longest an individual has been kept is 2 years, 0 months.
1 simi_uk (k: 9) since 2013-11-10 to 2015-11-14, that's 2 years, 0 months
2 OregonOutdoorsChris since 2018-05-22 to 2018-10-21, that's 0 years, 4 months; who writes, "Actually have paskai/luminatus. All but one have succumbed to columnaris over the coarse of a couple weeks."