Fish are kind of strange about these things. I would think that mom would have eaten the eggs right away, if they weren't viable or if she had bad parenting instincts. I am including a paragraph from an article I wrote recently about my nanacara anomola's spawning behavior. Two disclaimers: (1) ok, so they're not apistogrammas, but they're pretty similar fish in habitat and behavior (2) I don't have tons of experience, but I do seem to have gotten lucky with these. "To date, the breeding pair have had two successful spawns. In both cases, the female has laid the eggs on a piece of driftwood protected by a really impressive amazon sword plant. About two days after spawning, the eggs hatched. The female took this opportunity to move the babies to a nearby location. For one of the spawns, the nursery moved to a large leaf closely sheltered by another leaf. On the second occasion, mom moved the baby fish to another location on the same piece of wood. After about another week the fry became free swimming, and mother could be seen touring the lower regions of the tank with a swarm of fry around her. This particular fish is an excellent mother, aggressively defending her brood even from the full-grown angelfish that share the tank. " So, the mother moves the hatchlings after a few days, at which time the stick to driftwood, or a leaf, flopping around. After about five more days, the fry start swimming around, and can be seen near the mom. If mom is defending a particular area of the tank, I would wait it out. If she's not defending, and is acting normally, whatever that is, I would assume you've had another abortive spawn. Tom On Mon, 19 May 1997 camillus@dreamscape.com wrote: > My son recently purchased a pair of Apistogrammas. On April 19, there > were eggs on the side of the tank. The next morning they were gone. It > is a community tank. I think one of the other fish was the problem > during the night.