How Big Is the Brazilian Black Tarantula?

If you're wondering about the brazilian black tarantula size before bringing one home, you're looking at a spider that usually hits a solid 6 to 7 inches in diagonal leg span once it reaches full maturity. They aren't the absolute giants of the hobby—nothing like a Goliath Birdeater—but they have a substantial, heavy-bodied presence that makes them feel much larger than a spindly arboreal species of the same length. ...

May 9, 2026 · 6 min · Fahamu Marcella