All posts by Joshua Vito

Breeding Heterandria formosa – Least killifish


General information
The Least Killifish, Heterandria formosa is a small, livebearing fish that originates from North America. It is from the same family as Guppies and Mollys. This is the smallest fish found in North America, and one of the smallest fish in the world.

Tank setup
My experience with this fish started because I found the colony behavior of the fish very interesting. At the local fish store, The Fish Place, they had a colony that contained many different aged specimens all living in the same tank. The larger fish didn’t seem to bother the smaller, and the fish sort of hovered in groups, and didn’t really school. A second reason for me to want these fish was to see if I could spawn the fish and turn them in for points at my local fish club. I purchased a pair of fish from the LFS, and took them home. Continue reading Breeding Heterandria formosa – Least killifish

Breeding Discus – Symphysodon aequifasciatus – part 2

This article is a continuation of the previous post, “Breeding Discus – Symphysodon aequifasciatus – part 1.”

Symphysodon aequifasciatus - Day 4
Symphysodon aequifasciatus – Day 4

After three failed attempts, my new pair of discus have had a successful spawn. The eggs were laid on or around June 19st, 2012. The fry were all free swimming on June 26th, 2012 (Age = Day 1). Just as some others have noted, it often takes new pairs a few tries to get it right, and my pair succeeded on their fourth try.

The fish actually spawned after they had wigglers in the tank, but few to none fry survived from that spawn. Continue reading Breeding Discus – Symphysodon aequifasciatus – part 2