Spawning Report: Heterandria formosa, Least killifish

Did a water change, this is part of the colony. Jan 15 2024

Spawning Report:  Heterandria formosa

Name:    John Satterlee

Scientific Name of Fish:  Poecilia wingae. N-class pure Cumana

Hobby Name of Fish:  Least killifish

Method of Reproduction:  Livebearer

Number and Gender Distribution of Parents:  two pairs

Origin of Parents:  Tank raised, from PVAS auction many months ago, from Lee Agin

Approximate number of fry:  8. (this is from an entire tank, they only have 2 fry at a time)

Date of First Hatch or Birth:  May 1-July 1 2023

Date of Free Swimming If Hatched:  N/A

Approx. Number of Fry at 60 Days:  >8

Aquarium Conditions:

pH:  7.2

General Hardness:  150 ppm

Average Temperature (72-76 F)

Salinity:  none

Average Nitrate:  < 40 ppm

Aquarium Size:  5.5 gallon

Water Source:  Rockville MD tap water with Seachem Prime

Water Changes:  80% once a month

Filtration System:  sponge filter

Additives:  Crushed coral

Décor:

Live Plants:  Valisneria, anubias

Substrate:  Home depot pebbles

Lighting Type and Timing:  Home Depot light, 12 hrs on/12 hrs off

Food Fed to Parents and How Often:  Tetra Color Tropical Flakes morning and evening.  Freshly hatched baby brine shrimp every 1-2 days. 

Food Fed to Fry and How Often:  Finely ground dry fry food (Aquarium Coop) morning and evening, freshly hatched baby brine shrimp every 1-2 days.

Additional comments:  They are colony breeding slowly but surely. The fry are extremely small and easily damaged if you try to net them when very young.