However many dubia roaches or mealworms you buy at once, they won't all get eaten the same day — and how you store the rest determines whether they're still healthy, gut-loaded feeders a week later or a bin of casualties.
Dubia Roaches: Warm, Dry, and Fed
Dubia roaches store best kept warm (roughly 75–85°F), in a dry, ventilated bin with egg-crate for surface area, and never with standing water — they drown easily, so hydration comes from fresh vegetables instead. See our dubia roach care page for a full setup. Kept warm and fed, a colony stays healthy for weeks rather than days.
Mealworms and Superworms: Cool Changes Everything
Mealworms behave completely differently: refrigeration (around 40–50°F) slows their metabolism and delays pupation, letting a batch last for weeks in a container of oat or wheat bran. Superworms can't take the same cold — refrigerating them kills them — so they need to stay at room temperature instead, which also means they'll pupate into beetles faster if not used relatively promptly. See our mealworm and superworm care page for the specifics on each.
Storage Time Is Gut-Loading Time, Not Just Holding Time
Every one of our feeder-guide pages recommends gut-loading for 24–48 hours before a feeding — which means the days your feeders spend in storage are exactly when that should happen, not a separate step afterward. A dubia colony fed fresh greens while it waits, or mealworms kept in a nutritious bran substrate, arrive at feeding time already gut-loaded. Treating storage and gut-loading as one continuous step, rather than store-then-remember-to-gut-load, is the easiest way to make sure it actually happens.
Bottom Line
Store dubia roaches warm and dry, mealworms cold, and superworms at room temperature — and feed whatever you're storing the same nutritious diet you'd use for gut-loading anyway. See our gut-loading guide for what to feed them while they wait.
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