Emerald Dwarf Rasbora

Celestichthys erythromicron

Not a true rasbora but a small danio from the cool, alkaline waters of Lake Inle. Unusual for a nano fish: it needs neutral-to-alkaline water.

Care Parameters

Adult size

3 cm

Min tank

38 L

Temperature

20–26°C

7–8

8–15 dGH

Diet

Micropredator

Temperament

Peaceful

Water zone

Middle

Difficulty

Intermediate

Schooling

School of 8 or more; shy in smaller groups.

Suitable Plants

Rotala sp. h'ra

A stunning stem plant that develops intense orange-red coloration under high light and CO2. Narrow leaves arranged in whorls create a striking background accent in aquascapes.

Anacharis

Care profile for Anacharis: low light, none CO₂, beginner difficulty.

Ludwigia arcuata

A delicate stem plant with thin, needle-like leaves that turn deep red under high light. Also known as Needle Leaf Ludwigia, it adds fine texture and vibrant color to aquascapes.

Glossostigma

One of the smallest aquarium plants, forming a dense carpet of tiny green leaves. Requires high light and CO2 to stay compact; Without it, stems stretch upward.

Christmas Moss

A popular aquarium moss with branching fronds that resemble a Christmas tree shape. Attaches easily to hardscape and creates dense, attractive green coverage.

Compatible Invertebrates

Babaulti Shrimp

A small, colorful freshwater shrimp available in green, brown, and striped morphs. Hardy and easy to breed, making them excellent additions to planted community tanks.

Blue Bolt Shrimp

A striking blue color morph of Caridina cantonensis. Deep blue body with white banding. Extremely sensitive to water parameters — requires very soft, acidic water.

Assassin Snail

The striped predator of the aquarium world, kept to hunt down pest snails and worms. It burrows by day and hunts by night, and will happily share a tank with fish and plants - it ignores shrimp and fish entirely. Also known as Clea helena; both names are accepted.

Zebra Nerite Snail

A striped, hard-working algae grazer that never overpopulates: its eggs are laid all over the glass but only hatch in brackish water, so they simply stay put. Prefers harder water (GH 6-20 dGH) with calcium for a healthy shell; watch for escapes, as it can climb out of open tanks.