Complex sentence: White Cloud Mountain minnows are considered good fish for beginners, as they are extremely forgiving with regard to aquarium temperature and water quality, and make an ideal "starter fish" for cycling a new aquarium.
Split into simpler sentences: White Cloud Mountain minnows are considered good fish for beginners, as they are extremely forgiving with regard to aquarium temperature and water quality. They also make an ideal "starter fish" for cycling a new aquarium.