Recently a new fish has appeared on the list of killifish, Renova oscari. This new genus and new species of annual rivulid killifish was first described in the Icthyological Journal of Freshwater Fishes 1995, but has been in the hobby for some time as Moema sp. Isla Raton RDB 92/22. Representative specimens were collected in a temporary pool on Isla Raton, Upper Rio Orinoco, Amazonas State, Venezuela. Collected from the same pool were Pterolebias xiphophorus, Terranatos dolichopterus, and Rivulus species.
Males, which may grow to 4 inches, have a green/blue body with five to seven lateral red stripes that begin behind the dorsal fin, small pelvic fins, and long extensions of the central caudal rays. Females, which look like typical "big rivulus", may or may not have a "rivulus spot."
Maintenance notes: water 25-26 deg. C temperature, pH 6.5. Peat spawning, with an incubation period of 5-7 months. Although the eggs are small (1.25mm), amber in color and hard to see in the peat, the fry are fairly large at hatching (baby guppy size) and can readily take small live foods. Renova oscari appears to be a fairly easy, relatively prolific fish.— G.C.K.A. Newsletter, October 1996