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Is Uruguay Sword a Good Plant for Red Phantom Tetra?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Strong Fit

Uruguay Sword is a strong fit for Red Phantom Tetra. 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.

Uruguay Sword

Echinodorus uruguayensis

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PlacementMidground
LightModerate
DifficultyBeginner
Size55 × 40 cm

Red Phantom Tetra

Hyphessobrycon sweglesi

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TemperamentPeaceful
FamilyCharacins
Temp20–24°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

84/100

The plant and fish suit each other well.

Water match

Workable overlap

Shared range: 20-24°C, pH 6-7.5, 2-10 dGH.

Plant pressure

Low

Red Phantom Tetra is not flagged as unusually hard on this plant.

Layout value

Moderate cover

Uruguay Sword helps with breaks lines of sight 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
Uruguay Sword16-28°C
Red Phantom Tetra20-24°C

Overlap: 20-24°C.

pH
Uruguay Sword6-7.5
Red Phantom Tetra4.5-7.5

Overlap: pH 6-7.5.

Hardness
Uruguay Sword2-12 dGH
Red Phantom Tetra1-10 dGH

Overlap: 2-10 dGH.

Water and flow
Uruguay SwordFreshwater Only, Moderate (Standard)
Red Phantom TetraFreshwater Only, Low (Still Water)

Flow expectations are close enough for one layout.

Space used
Uruguay SwordMidground and Background
Red Phantom TetraMiddle (Open Water)
Pressure signals
Uruguay SwordHigh uproot resistance, Tough / leathery leaves
Red Phantom TetraPeaceful, Nano / Bite-sized (Predation Risk), Hyperactive / Fast Swimmer, and Shy / Slow Moving (Easily Stressed)

Plant pressure: Low.

Planting value
Uruguay SwordBreaks lines of sight and Useful spawning site, Nutrient-rich substrate preferred
Red Phantom TetraPlants - Densely covered, Plants - Floating, and Leaf Litter/Blackwater

Shared Tank Conditions

Uruguay Sword fits inside the water range normally used for Red Phantom Tetra. The shared window is about 20 to 24 °C, pH 6 to 7.5, and 2 to 10 dGH, which gives you enough room to aim for stable middle-ground conditions.

Their flow expectations are close enough to combine: Uruguay Sword prefers moderate flow, while Red Phantom Tetra prefers gentle, low-flow water.

Both are suited to freshwater, so salinity does not add an extra planning problem.

Fish Pressure and Plant Resilience

Red Phantom Tetra does not put unusual pressure on this plant compared with harder fish-plant combinations.

Uruguay Sword has moderate cover density, high uproot resistance, and tough / leathery leaves. It can also help with breaking up sight lines and spawning sites.

This plant adds the denser cover that Red Phantom Tetra usually appreciates.

The point to watch is red Phantom Tetra 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

Uruguay Sword is a rosette / crown plant usually used midground and background.

Red Phantom Tetra is a characin, so the pairing works best when the planting style supports how that fish uses space and cover.

Uruguay Sword reaches about 55 cm tall by 40 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 line-of-sight breaks and spawning sites. Place it where Red Phantom Tetra 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 Red Phantom Tetra, 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: Red Phantom Tetra 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

Uruguay Sword is a strong choice for Red Phantom Tetra 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 Uruguay Sword and Red Phantom Tetra

Is Uruguay Sword a good plant for Red Phantom Tetra?

Uruguay Sword is a strong fit for Red Phantom Tetra. 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 Red Phantom Tetra damage Uruguay Sword?

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

Do Uruguay Sword and Red Phantom Tetra share the same water conditions?

Uruguay Sword and Red Phantom Tetra share a workable water window around 20 to 24 °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 Uruguay Sword add to a tank with Red Phantom Tetra?

This plant adds the denser cover that Red Phantom Tetra usually appreciates.

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

Red Phantom Tetra 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 11, 2026
Last updated
May 11, 2026
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