Enclosure and maintenance
Adults reach about 12–14 cm (4.75–5.5 in). Ceratogyrus marshalli is a fossorial species, so the enclosure should prioritise deep, compactable substrate, a secure starter burrow and enough depth for the spider to stay underground.
With Ceratogyrus marshalli, plan routine maintenance so your hands do not need to share the spider's space. Keep a catch cup and long tools ready before opening the enclosure.
Growth, feeding and moulting
Growth is fast. Feed to the spider's size, appetite and abdomen rather than forcing a rigid weekly schedule; the routine will change as Ceratogyrus marshalli grows.
If Ceratogyrus marshalli refuses food and shows premoult signs, remove live prey, keep water available and leave it alone. There is no need to make a spider in normal premoult eat.
Lifespan and buying one
Straight Horned Baboon females often live 8–12 years; males live roughly 2–4 years. An unsexed youngster can therefore become either a relatively short or a much longer commitment.
Before buying Straight Horned Baboon, get two concrete details: how any claimed sex was established and the spider's current measured size. Those are more useful than a vague life-stage label.