Feeding a pet spider sounds straightforward until you’re staring at a container of crickets at 11 p.m., wondering why half of them are already climbing the walls. My early days were filled with those moments. I used to drop prey directly into the enclosure and walk away, only to find an untouched cricket wandering around hours later. That’s when I learned that spiders, despite their reputation, aren’t indiscriminate eaters. They have moods, cycles, and boundaries.
Live feeder insects are still the most reliable food source. Crickets, roaches, and mealworms are common choices, and most species respond well to prey roughly the size of their abdomen. The only time I broke this rule was with a juvenile tarantula; I accidentally offered a cricket too large, which resulted in the spider retreating behind its hide for an entire day. Since then, I err on the smaller side. I also keep feeders in a separate cricket enclosure because chasing escapees around the living room at night is not a habit anyone wants.
Feeding frequency is surprisingly forgiving. Many spiders thrive on a schedule of once or twice a week. I slip into a loose routine—Monday evenings tend to be my “cricket check” time, mostly because the rest of the week gets busy. If the spider looks slightly plump, I stretch the gap a bit. Molting cycles complicate things; when a spider refuses food, nine times out of ten it’s pre-molt. Forcing a meal in that period is a mistake I made only once. The cricket ended up stepping on freshly laid webbing and ruining an entire corner the spider had meticulously constructed.
Feeding tools make life calmer for both keeper and spider. Feeding tongs let you offer prey without shaking the enclosure or sticking your hand too close. I’ve noticed that spiders become more predictable when their environment stays still during feeding. Once, while using my hands like an amateur, I bumped the cork bark and startled a typically docile species into a defensive posture. Since then, I treat tools like extensions of my own boundaries. Even something as small as a long spoon can help guide a stray worm away from sensitive areas of the habitat.
Avoiding overfeeding matters more than people expect. A spider that eats too frequently becomes sluggish and vulnerable during molts. I used to think a well-fed spider was automatically healthier, but watching a bloated spider try to navigate a vertical surface taught me otherwise. A simple rule helps: if the abdomen looks twice the size of the carapace, ease up on the portions. Leave prey in for only a short window—maybe an hour—and remove leftovers. Crickets left overnight can nip at a molting spider, and that’s not a risk worth taking.
Nutritional supplements aren’t necessities, but they can help indirectly by improving feeder quality. I use calcium-free insect gel to hydrate my feeders and keep them alive longer. Gut-loaded insects behave more actively, which seems to trigger better feeding responses. I’ve seen anecdotal chatter from keepers saying their spiders look more vibrant when fed well-conditioned prey, and it matches my experience, even if I can’t quantify it. Just avoid powders or coatings meant for reptiles; they aren’t designed for arachnids and often get ignored anyway.
There’s also an emotional rhythm to feeding spiders. Some nights I catch myself overthinking—staring at an enclosure, wondering if the spider simply isn’t in the mood. And sometimes that’s exactly it. Spiders have quiet days. Offering food gently, noticing body language, respecting refusals… these small habits create a smoother relationship with an animal that can’t tell you what it needs.
Feeding a spider becomes natural once you stop treating it like a task and more like a conversation in slow motion. A little patience, smaller prey, and steady routines go a long way. Over time, you learn to read the subtle cues—those moments when the spider shifts forward, settling into its hunting stance—and suddenly the process feels less like guesswork and more like understanding.
