There are lots of ways to produce the fish you want. Here are a few: Breeding a Beta and a Fruitfish will produce a Stickfish. Breeding either an Orange or an Oriental with a Twin-Fin will produce a Speckled, as will breeding a Crimson and a Flagged. So, for example, you could breed a Twin-Fin Fruitfish with an Orange Beta and you'd have the Speckled Stickfish.