My guess is that they'll spawn again soon. If you go with only a few pencil fish (small mouthed, top water fish), then they will not pose a threat to the fry, and may help to focus the parents "fry guarding" instinct.
i had a pair of A. cacatuoides spawn in a tank with no dithers, and since the male had nothing to do, he insisted on "pitching in" on the brood care. The only problem was that his version of pitching in was to take a mouthful of fry, spit them out on the other side of the tank, gaurd them diligently for all of 2 minutes, and then swim away, never to check up on them again. A few "target/dither fish" will alow the male to do what males do best....defend the larger territory. Granted Rams are different, and seem to share in brood care more than apistos, but that's just my take on it.