Feeding is one of the most rewarding parts of keeping jumping spiders โ€” watching a tiny animal stalk and pounce on prey with surgical precision never gets old. But it requires some knowledge to do right.

๐Ÿ“† How Often to Feed #

Spiderlings (1stโ€“3rd instar)
Every 2โ€“3 days
Juveniles (4thโ€“6th instar)
Every 3โ€“4 days
Sub-adults
Every 4โ€“5 days
Adults (general)
Every 5โ€“7 days
Adult females (gravid)
Every 2โ€“3 days
Pre-molt or post-molt
Do not feed

๐Ÿ“ Prey Sizing #

A prey item should be no larger than the spiderโ€™s abdomen in length. This rule applies across all life stages. Oversized prey is stressful, dangerous, and often results in the spider retreating rather than attacking.

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When your spider retreats from prey

If your spider runs away from or ignores a prey item, the most likely cause is that the prey is too large. Try a smaller feeder before assuming thereโ€™s a health issue.

๐ŸŽฏ Feeding Technique #

Use long feeding tweezers or forceps to introduce prey. Never use your fingers to handle feeders directly into the enclosure โ€” your finger will smell like food to the spider. Place the prey item on the floor of the enclosure or on a piece of decor in the spiderโ€™s sightline.

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Stimulate the hunt

Gently moving the prey with tweezers triggers the spiderโ€™s visual tracking instinct. A still prey item may be ignored; a moving one almost always gets attention. This works especially well for training spiders to accept non-live feeders.

๐Ÿšซ When Your Spider Refuses Food #

Food refusal is normal and expected before molts, and for 5โ€“7 days after. Outside of these contexts, a spider that refuses food for more than 2 weeks โ€” with a round, full abdomen โ€” is probably just not hungry. Check hydration, check temperature, and try again in a few days.