The Best Fish and Décor Combinations for Your biOrb Aquarium

Choosing the right fish and décor combination is the secret to a healthy, beautiful, and low-maintenance biOrb aquarium. Whether you’re starting a nano setup or upgrading to a larger tank, picking fish that thrive in compact environments—and matching them with décor that suits their behavior—ensures both style and sustainability.

In this guide, we’ll explore the best fish and décor pairings for different biOrb models, including suggestions for themes, tank sizes, and care levels.

Why Compatibility Matters in a biOrb

biOrb aquariums are unique in shape and function. Their:

• Central bubble tube filters and circulates water vertically

• Rounded or columnar design allows 360° viewing

• Compact size means water quality can shift quickly with the wrong fish

This makes it essential to:

• Choose peaceful, small fish

• Match décor to allow swimming space and shelter

• Avoid overstocking or sharp ornaments that damage fins

Fish and Décor Combos by biOrb Size

biOrb CLASSIC 15 or FLOW 15 (15L)

Fish Options:

• Cherry shrimp

• Amano shrimp

• Nerite or mystery snails

• Single betta (with caution)

Décor Ideas:

• Small Zen Garden set

• Shell-based décor or mossy pebbles

• Minimalist layouts for betta display

✅ Keep livestock minimal—these tanks are better suited for inverts or one centerpiece fish.

biOrb CLASSIC 30 / TUBE 30 / FLOW 30 (30L)

Fish Options:

• 3–5 Neon or Ember tetras

• 3 Endler’s livebearers

• 2–3 Pygmy corydoras

• 1 Nerite snail + shrimp

Décor Ideas:

• Jungle or Rock base décor set

• Rounded artificial plants and tall fern backdrops

• Low ornaments that don’t block filtration

🧠 Use soft silk plants and smooth textures to avoid injury to small fish.

biOrb LIFE 45 / TUBE 35 (35–45L)

Fish Options:

• 6 Harlequin rasboras

• Guppy trio

• Otocinclus catfish (for algae control)

• Amano shrimp colony

Décor Ideas:

• Forest Rhythm or Ocean Coral sets

• Trunk base with feather ferns

• Layered background-to-foreground planting

🎨 Use vibrant color plants to contrast with guppies and rasboras.

biOrb LIFE 60 / HALO 60 (60L)

Fish Options:

• 8–10 small community fish (platies, danios, tetras)

• Group of Corydoras

• Up to 5 shrimp

• 1–2 mystery snails

Décor Ideas:

• Large Zen or Reef themes

• Root or coral sculptures with tall accents

• Room for schooling movement

🛠️ Ensure open space in the center for bubble flow and fish activity.

Matching Themes to Fish Behavior

Fish to Avoid in biOrb Aquariums

• Goldfish (too messy, grow large)

• Plecos (space and filter-demanding)

• Cichlids and aggressive species

• Any fast or large-growing fish

🚫 Stick to nano-sized, community-safe species under 5 cm.

Tips for Combining Décor and Fish Effectively

• Leave at least 40–50% of tank volume open for swimming

• Choose rounded or smooth ornaments to avoid fin damage

• Use tall background plants to create depth without crowding

• Provide at least one hiding spot per fish group

• Avoid blocking the central bubble tube with dense décor

Where to Buy Compatible Kits

Shop official biOrb décor kits, silk plants, ornaments, and livestock-safe accessories at Charterhouse Aquatics. We offer curated décor for every biOrb model, plus multi-packs of Service Kits and water treatments for full maintenance support.

Final Thoughts

The best biOrb aquariums are those where fish and décor are thoughtfully paired. Whether you’re building a planted haven for shrimp or a vibrant community for guppies, matching your stocking plan with the right theme and layout enhances both appearance and aquatic wellbeing.

For expert advice and quality biOrb products, explore the full range at Charterhouse Aquatics—your trusted destination for aquascaping and fishkeeping essentials.