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Is Micro Sword a Good Plant for Copper Harlequin Rasbora?

Reviewed by Guidarium Editorial DeskUpdated May 3, 2026
Strong Fit

Micro Sword is a strong fit for Copper Harlequin Rasbora. The shared water window is realistic, and the plant has enough structure or resilience to be useful in a tank built around this fish. Fish pressure is low, so the plant can be judged mostly on water match, cover value, and layout role.

Micro Sword

Lilaeopsis brasiliensis

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PlacementForeground
LightModerate
DifficultyIntermediate
Size7 × 15 cm

Copper Harlequin Rasbora

Trigonostigma hengeli

View fish profile
TemperamentPeaceful
FamilyCyprinids
Temp23–28°C
Water TypeFreshwater Only

Quick Decision

A plant can be technically compatible with a fish and still fail in the actual tank if the fish digs, chews, needs denser cover, or uses a different part of the layout.

Overall fit

94/100

The plant and fish suit each other well.

Water match

Workable overlap

Shared range: 23-28°C, pH 6-7.5, 2-10 dGH.

Plant pressure

Low

Copper Harlequin Rasbora is not flagged as unusually hard on this plant.

Layout value

High cover

Micro Sword helps with good refuge for shrimp, good refuge for fry, good grazing surface, and useful spawning site.

Plant and Fish Fit Notes

Use these signals to decide whether the plant is doing useful work for the fish, or whether it is only surviving beside it.

Temperature
Micro Sword15-28°C
Copper Harlequin Rasbora23-28°C

Overlap: 23-28°C.

pH
Micro Sword6-7.5
Copper Harlequin Rasbora5-7.5

Overlap: pH 6-7.5.

Hardness
Micro Sword2-15 dGH
Copper Harlequin Rasbora1-10 dGH

Overlap: 2-10 dGH.

Water and flow
Micro SwordBrackish Tolerant, Moderate (Standard)
Copper Harlequin RasboraFreshwater Only, Moderate (Standard)

Flow expectations are close enough for one layout.

Space used
Micro SwordForeground and Carpeting
Copper Harlequin RasboraTop (Surface) and Middle (Open Water)
Pressure signals
Micro SwordHigh uproot resistance, Tough / leathery leaves
Copper Harlequin RasboraPeaceful, Nano / Bite-sized (Predation Risk), Hyperactive / Fast Swimmer, and Shy / Slow Moving (Easily Stressed)

Plant pressure: Low.

Planting value
Micro SwordGood refuge for shrimp, Good refuge for fry, Good grazing surface, and Useful spawning site, Nutrient-rich substrate preferred
Copper Harlequin RasboraPlants - Densely covered, Plants - Floating, and Leaf Litter/Blackwater

Shared Tank Conditions

Micro Sword fits inside the water range normally used for Copper Harlequin Rasbora. The shared window is about 23 to 28 °C, pH 6 to 7.5, and 2 to 10 dGH, which gives you enough room to aim for stable middle-ground conditions.

Both do best with moderate flow, so circulation does not need to be split into competing zones.

Water type can work if the tank stays in the shared part of freshwater to lightly brackish water and freshwater conditions.

Fish Pressure and Plant Resilience

Copper Harlequin Rasbora does not put unusual pressure on this plant compared with harder fish-plant combinations.

Micro Sword has high cover density, high uproot resistance, and tough / leathery leaves. It can also help with shrimp refuge, fry refuge, grazing surfaces, and spawning sites.

This plant adds the denser cover that Copper Harlequin Rasbora usually appreciates.

The point to watch is copper Harlequin Rasbora often benefits from floating cover, so this plant may need to be part of a mixed planting plan rather than the whole answer.

Layout Fit

Micro Sword is a stolon / runner plant usually used foreground and carpeting.

Copper Harlequin Rasbora is a cyprinid, so the pairing works best when the planting style supports how that fish uses space and cover.

Micro Sword reaches about 7 cm tall by 15 cm wide and is usually rooted in substrate with nutrient-rich substrate preferred. That makes placement and anchoring more important than simply adding a larger bunch of stems or leaves.

In this pairing, the useful plant values are shrimp refuge, fry refuge, grazing surfaces, and spawning sites. Place it where Copper Harlequin Rasbora can actually use that structure instead of hiding the plant where it cannot do much.

Practical Recommendation

This is a sensible planted-tank choice for Copper Harlequin Rasbora, especially when you want the plant to do real work as cover, sight-line structure, or habitat detail.

The decision should center on this signal: Copper Harlequin Rasbora often benefits from floating cover, so this plant may need to be part of a mixed planting plan rather than the whole answer.

Best Use Case

Micro Sword is a strong choice for Copper Harlequin Rasbora when you want the plant to do real work in the tank, not just survive in the background. The pairing tends to perform best when the plant's cover, resilience, or placement naturally supports how the fish moves, hides, or claims space.

Frequently Asked Questions About Micro Sword and Copper Harlequin Rasbora

Is Micro Sword a good plant for Copper Harlequin Rasbora?

Micro Sword is a strong fit for Copper Harlequin Rasbora. The shared water window is realistic, and the plant has enough structure or resilience to be useful in a tank built around this fish. Fish pressure is low, so the plant can be judged mostly on water match, cover value, and layout role.

Can Copper Harlequin Rasbora damage Micro Sword?

Copper Harlequin Rasbora often benefits from floating cover, so this plant may need to be part of a mixed planting plan rather than the whole answer.

Do Micro Sword and Copper Harlequin Rasbora share the same water conditions?

Micro Sword and Copper Harlequin Rasbora share a workable water window around 23 to 28 °C, pH 6 to 7.5, and 2 to 10 dGH. Keep the tank near the middle of that overlap for the best long-term result.

What does Micro Sword add to a tank with Copper Harlequin Rasbora?

This plant adds the denser cover that Copper Harlequin Rasbora usually appreciates.

What is the main risk in this plant and fish pairing?

Copper Harlequin Rasbora often benefits from floating cover, so this plant may need to be part of a mixed planting plan rather than the whole answer.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
May 3, 2026
Last updated
May 3, 2026
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