River Gravel

€5,90

In stock

Decorative gravel adds texture, contrast, and visual balance to terrariums and plant arrangements.

This river gravel is suitable for top layers, pathways, and decorative accents, helping define space without overwhelming the composition.

Different stone sizes and tones allow for subtle contrast or stronger visual structure, depending on how it’s used.

Color and shape vary naturally between stones, creating a more organic finish.

Gravel is packed securely to prevent spillage and damage during transport.

This is a non-living product and follows standard shipping and return conditions.

Use: Decorative top layer or accent paths

Preparation: Rinse before use to remove dust

Placement: Terrariums, pots, or decorative displays

River gravel adds visual structure and helps separate areas within a composition.

Use sparingly for a balanced look.

Store unused material in a dry place.

Stone brings stillness to a composition.

Use it to guide the eye, not to fill space.

What Your Terrarium Really Needs

Gentle guidance on natural substrates, drainage, and coverings — no complexity required.

What are the essential layers in a closed terrarium?

From bottom to top:

Drainage layer: 2.5–5 cm — natural pebbles, river stones, gravel, or LECA/clay balls. Catches excess water to protect roots.
Activated charcoal (thin layer): 0.5–1 cm — filters water, reduces odors, prevents mold. A little goes a long way.
Barrier (optional): Sheet of sphagnum moss or landscape fabric to stop soil mixing downward.
Substrate/soil: 5–10 cm, depending on plant roots — light, aerated mix (peat-free potting soil + perlite/coco coir/orchid bark). Avoid dense garden soil.
Top layer: Live sheet moss, preserved moss, or natural stones/bark — thin covering for humidity and aesthetics.

This setup creates a self-sustaining cycle where water condenses and recirculates naturally.

How much of each material do I need?

Rough guide for a medium jar 1–2 liter:

Drainage: 2.5–5 cm
Charcoal: 0.5–1 cm
Soil: 5–10 cm — enough for roots but leave headspace for plants and air.

Scale proportionally for larger/smaller containers — always prioritize observation over exactness.

What’s the best drainage material?

Natural river pebbles or polished stones (like our MossBoss drainage pebbles) in small-medium size (0.6–1.3 cm) for good airflow and gaps. Alternatives: aquarium gravel, lava rock, or LECA. Avoid sharp materials that could scratch glass or roots.

What soil/substrate should I use?

Light and draining:

ABG mix (orchid bark, tree fern fiber, sphagnum, charcoal) for bioactive.
Simple blend: peat-free potting mix + 20–30% perlite/coco coir + some charcoal.
No added fertilizers — low-nutrient is best for balance.

Can I use decorative items like colored stones, glass beads, or figurines?

Yes, but keep it minimal and natural: polished river stones, slate, bark, or driftwood. Avoid painted, glazed, or metallic items — they risk leaching in humidity. Rule: if it doesn't support the ecosystem, skip it.

Where can I source good materials in Bulgaria?

We stock natural drainage pebbles, activated charcoal, live/preserved moss, substrates, and tools at www.mossboss.bg — chosen for calm, long-term terrariums.

If you're assembling one now, share your jar size (in cm or inches) or plant types — we'll suggest precise layer depths and materials in our voice. Care for something real.

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Combine moss, suitable plants, substrates, and natural stones to create miniature forests and rocky landscapes.

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Create landscapes that transition between terrestrial and aquatic areas, selecting materials according to their intended use. Do not claim any material is aquarium-safe unless verified.