Separate zebra haworthia from young aloes using bands and marginal teeth.
Read the leaves
Haworthiopsis fasciata: firm, triangular leaves with white zebra bands; leaves arranged tightly, often without large marginal teeth. Aloe vera (juvenile): thicker, wetter leaves with marginal teeth; bands/spots vary by cultivar.
Growth & light
Haworthia tolerates lower light and stays compact; Aloe prefers brighter conditions and grows faster with age.