Folsomia candida Care Guide

Folsomia candida — commonly called the temperate white springtail — is the workhorse of the bioactive hobby. These tiny hexapods consume mold, decaying organic matter, and uneaten food, making them essential cleanup crew members in terrariums and vivariums.

Why Keep Folsomia candida?

F. candida is tolerant of a wide range of conditions, breeds quickly, and adapts well to both tropical and temperate setups. Unlike some tropical species, they handle cooler temperatures without crashing, which makes them forgiving for beginners.

Enclosure Setup

Springtails don't need a dedicated display enclosure — they're maintained in culture containers and introduced to your main setup.

• Container: A sealed deli cup or small plastic container with ventilation holes
• Substrate: 1–2 inches of moist coconut fiber or sphagnum moss
• Cover: A piece of bark or leaf litter on the surface gives springtails a place to congregate

Keep the substrate moist but never waterlogged. If water pools at the bottom, drainage is insufficient.

Temperature & Humidity

F. candida thrives at room temperature (65–75°F). They tolerate brief excursions outside this range but reproduce fastest within it.

Maintain humidity at 70–90%. In drier environments, mist the culture lightly every few days. A hygrometer helps, but experienced keepers often judge by feel — the substrate should stay damp to the touch.

Feeding

Springtails are detritivores. In culture, supplement their diet with:

• Springtail food or active dry yeast (small pinch weekly)
• Decaying leaf litter ( oak or magnolia leaves work well)
• Mushroom bits or fish flake (sparingly)

Overfeeding causes mold blooms. A small amount of food that disappears within a few days is the right level.

Reproduction

F. candida reproduces through egg-laying. Females deposit eggs in the substrate, and juveniles hatch within 1–2 weeks depending on temperature. A healthy culture can go from a starter to thousands of individuals in 4–6 weeks.

Signs of a thriving culture:

• Visible movement when you tap the container
• Springtails climbing the walls
• Steady population even after harvesting portions for introduction

Introducing to a Terrarium

To seed a bioactive setup:

1. Transfer a portion of substrate and leaf litter from your culture
2. Place it on the terrarium substrate surface
3. Mist lightly to encourage migration
4. Avoid letting the terrarium dry out during the first week

Springtails will spread on their own. You don't need to introduce hundreds — a healthy starter culture of 20–50 is sufficient.

Common Problems

Mold outbreaks

Usually caused by overfeeding or poor ventilation. Remove excess food, increase airflow slightly, and let the culture dry a bit before remisting.

Population crash

Often from desiccation (culture dried out) or extreme heat. If the substrate is bone dry, springtails may not recover. Always keep a backup culture.

Mites

Occasional mite infestations can occur. Prevent by avoiding overfeeding and removing visible mold promptly. A healthy springtail culture often outcompetes minor mite presence.

Frequently Asked Questions

How many springtails do I need for a terrarium? A starter culture is sufficient. They reproduce in-place once conditions are right.

Can F. candida live with isopods? Yes — they occupy different ecological niches and coexist well in bioactive setups.

Do springtails need light? No. They prefer dark, moist environments. Indirect ambient light is fine.

How long do cultures last? Indefinitely, with proper care. Refresh substrate every 6–12 months for best results.