Paradise Fish

Java Moss

The most popular and hardy aquarium moss. Grows on almost any surface in almost any conditions. Versatile for attaching to driftwood, rocks, or creating moss walls.

Vallisneria spiralis

Care profile for Vallisneria spiralis: medium light, none CO₂, beginner difficulty.

Duckweed

The smallest flowering plant — a tiny floating fern that doubles its coverage in days. Excellent nutrient absorber but extremely difficult to remove once established. Use with caution.

Red Rotala

Red stem plant. Turns red under high light with CO₂.

Lilaeopsis

A miniature grass-like plant that forms a dense, low carpet. One of the smallest foreground plants, ideal for nano aquascapes. Tolerates low light but grows denser under high light.

Vampire Crab

A small, semi-terrestrial crab with striking purple coloration and bright yellow eyes. Requires a paludarium setup with both land and water areas.

Blue Crayfish

A selectively bred color morph of the red swamp crayfish with brilliant blue coloration. Hardy and active, but will eat plants and harass tank mates.

Thai Micro Crab

A pea-sized, fully aquatic crab - no land zone needed - that perches on driftwood and picks microparticles from the water. Fragile and easily overlooked; keep a group of 3 or more in a mature nano tank, and never expose it to copper or sharp parameter swings.

Circulation Pump (Powerhead)

Internal Filter

Hang-On-Back Filter

Air Pump

Return Pump

Fish Gasping at Surface

Fish hover at the surface, breathing rapidly. A possible oxygen emergency.

Dropsy

Abdomen swells and scales stand out like a pinecone — usually a bacterial infection.

Fin Rot

Fins look frayed, ragged or are visibly shrinking with white or red edges.

Low Filter Flow

The filter output weakens, reducing circulation and filtration.

Cloudy Water

Milky or hazy water that never fully clears.