60L Aquarium with Celestial Pearl Danios (9) + Pygmy Corydoras (8) - Planted Community

A 60-liter aquarium is an excellent size for a planted community tank because it offers a stable water volume while still being easy to set up and maintain. This predefined aquarium combines two highly compatible, nano-friendly species that look and behave best in proper groups: 9 Celestial Pearl Danios (Danio margaritatus) - often called “Galaxy Rasboras” - and 8 Pygmy Corydoras (Corydoras pygmaeus). Together they create a balanced, natural community: constant movement in the midwater and gentle foraging below.

Why this stocking works in a 60L tank

This setup is built on two beginner-proof principles:

1. Keep social fish in real groups (so they act naturally and stay less stressed)
2. Mix species that use different tank zones (so the tank feels full without overcrowding)

Celestial pearl danios are social fish that become more confident and visible in a group. With 9, you’ll typically see better color, more relaxed swimming, and more consistent feeding behavior compared to keeping just a few.
Pygmy corydoras are also strongly social. A group of 8 helps them stay bolder and more active - often browsing the bottom and shoaling in the lower water column.

This combination gives you a community tank that feels “alive,” but still calm and manageable.

Best aquascape layout (what makes these fish shine)

Both species do best in a planted layout that combines cover with open space:

• Sand substrate (recommended for corydoras comfort and natural foraging)
• Dense plants on the sides and back to create security zones
• Open swimming space in the middle/front so you can watch the danios display
• Low plants / leaf cover areas where pygmy corys can explore confidently
• Optional floating plants to soften lighting (often makes fish bolder)

A planted tank isn’t just aesthetic. Plants help stabilize a community tank by absorbing waste and reducing stress—especially important for small, social fish.

Filtration and flow (steady, not harsh)

Celestial pearl danios generally do well with gentle-to-moderate flow, while pygmy corys prefer calmer zones. The goal is:

• steady circulation for oxygen and cleanliness
• not a strong jet that pushes fish around
• plants/hardscape that break up current and create “rest areas”

If the danios are constantly fighting the flow or the corys hide all day, the current is likely too strong.

Behavior notes (what you’ll see)

In a properly planted 60L:

• CPDs often show calm shoaling and occasional “display” behavior (especially males)
• pygmy corys forage in groups and may hover/shoal low in the water column
• the tank feels active without aggression or chaos

Keeping both species at proper group sizes is the key difference between a shy tank and a confident, visible community.

Feeding tips (simple routine)

Make sure both groups get food:

• CPDs: small floating/midwater foods (micro granules, crushed flakes)
• Pygmy corys: small sinking foods (micro pellets/wafers), ideally after lights dim
• avoid overfeeding; extra food quickly becomes waste and algae fuel

A “small and consistent” feeding schedule keeps water quality stable and fish behavior strong.

Maintenance (beginner-safe schedule)

A 60L tank stays stable with a simple routine:

• cycle before stocking (ammonia/nitrite must be 0)
• change ~25–30% weekly
• lightly clean only where debris collects (don’t over-vacuum planted zones)
• rinse filter media in old tank water when flow drops

This keeps CPDs active and keeps pygmy corys confident and healthy.

Customize this preset in Virtual Aquarium

Open this predefined aquarium in our Virtual Aquarium tool to:

• adjust fish counts and instantly see updated required water volume
• test alternative community fish while respecting minimum group sizes
• view a combined suitable temperature range for the fish you select

If you want a planted community that looks unique, stays peaceful, and fits a stable 60L footprint, 9 Celestial Pearl Danios + 8 Pygmy Corydoras is a strong preset to start with.