Jumping spiders need to eat every 2-4 days.

Jumping spiders thrive on frequent, small meals due to their high metabolism. Adults typically require food every 2-4 days, while juveniles may need daily feeding. Overfeeding or underfeeding can impact their health, so monitor their activity and adjust portions accordingly. Offer prey items like flies, crickets, or small insects.

Feeding Frequency by Life Stage

  • Spiderlings (young): Daily or every other day. Tiny prey (e.g., fruit flies).
  • Juveniles: Every 2-3 days. Slightly larger prey (e.g., pinhead crickets).
  • Adults: Every 3-4 days. Full-sized prey (e.g., small crickets, moths).
  • Females (egg-laden): Every 2 days. Increased protein needs before egg-laying.
  • Males (mature): Every 4-5 days. Lower metabolism; avoid overfeeding.

Signs Your Jumping Spider Is Hungry (or Overfed)

  • Hungry:
    • Actively scanning enclosure ("hunting" posture).
    • Webbing near the front of the tank.
    • Quickly pouncing on prey.
  • Overfed:
    • Lethargy or bloated abdomen.
    • Refusing food for 5+ days.
    • Excessive webbing (stress indicator).

Feeding Methods Compared

Method Prey Size Frequency Pros Cons
Live Prey (Free-Roaming) 1-2x spider's body length Every 2-4 days Stimulates natural hunting behavior. Risk of prey injuring spider if left unsupervised.
Pre-Killed Prey Small pieces (tweezers-fed) Every 3-5 days Safer; no escape or attack risk. Less enrichment; may reduce hunting instincts.
Gel/Frozen Food Pea-sized portions Every 4-7 days Convenient; long shelf life. Lower nutritional value; spiders may reject it.

Tips for Optimal Feeding

  1. Remove uneaten prey within 24 hours to prevent stress or attacks.
  2. Vary the diet (e.g., flies, crickets, mealworms) for balanced nutrition.
  3. Avoid wild-caught prey-they may carry pesticides or parasites.
  4. Hydration matters: Offer water droplets on enclosure sides 2-3x/week.
  5. Molting period: Stop feeding 3-5 days before molting (spider becomes inactive).

Common Mistakes to Avoid

  • Overfeeding: Causes obesity, shortened lifespan, or molting issues.
  • Underfeeding: Leads to weakness, cannibalism (in communal setups), or death.
  • Wrong prey size: Prey too large can injure or kill the spider.
  • Ignoring temperature: Cooler temps slow digestion-reduce feeding frequency.
  • Skipping gut-loading: Prey must be nutritious (feed insects veggies 24h prior).