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Is Crepidomanes Fern a Good Plant for Red Breasted Acara?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Strong Fit

Crepidomanes Fern is a strong fit for Red Breasted Acara. 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.

Crepidomanes Fern

Crepidomanes auriculatum

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PlacementAttached to hardscape
LightLow
DifficultyAdvanced
Size15 × 20 cm

Red Breasted Acara

Laetacara dorsigera

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TemperamentMostly Peaceful
FamilyCichlids - South American
Temp20–28°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

82/100

The plant and fish suit each other well.

Water match

Workable overlap

Shared range: 20-26°C, pH 5.5-7.5, 2-10 dGH.

Plant pressure

Low

Red Breasted Acara is not flagged as unusually hard on this plant.

Layout value

Low cover

Crepidomanes Fern helps with good refuge for shrimp and good grazing surface.

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
Crepidomanes Fern20-26°C
Red Breasted Acara20-28°C

Overlap: 20-26°C.

pH
Crepidomanes Fern5.5-7.5
Red Breasted Acara5.5-7.5

Overlap: pH 5.5-7.5.

Hardness
Crepidomanes Fern2-10 dGH
Red Breasted Acara1-12 dGH

Overlap: 2-10 dGH.

Water and flow
Crepidomanes FernFreshwater Only, Moderate (Standard)
Red Breasted AcaraFreshwater Only, Low (Still Water)

Flow expectations are close enough for one layout.

Space used
Crepidomanes FernAttached to hardscape, Foreground, and Midground
Red Breasted AcaraMiddle (Open Water) and Bottom (Substrate)
Pressure signals
Crepidomanes FernModerate uproot resistance, Delicate leaves
Red Breasted AcaraMostly Peaceful, Territorial (Defends specific area), Shy / Slow Moving (Easily Stressed), and Shrimp Eater

Plant pressure: Low.

Planting value
Crepidomanes FernGood refuge for shrimp and Good grazing surface, No substrate required
Red Breasted AcaraSand (Sifters), Driftwood (Digestion/Hiding), and Plants - Densely covered

Shared Tank Conditions

Crepidomanes Fern fits inside the water range normally used for Red Breasted Acara. The shared window is about 20 to 26 °C, pH 5.5 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: Crepidomanes Fern prefers moderate flow, while Red Breasted Acara 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 Breasted Acara does not put unusual pressure on this plant compared with harder fish-plant combinations.

Crepidomanes Fern has low cover density, moderate uproot resistance, and delicate leaves. It can also help with shrimp refuge and grazing surfaces.

Its structure adds useful refuge value beyond the normal visual role of the plant.

The point to watch is red Breasted Acara usually looks better with denser planting than this species provides on its own.

Layout Fit

Crepidomanes Fern is a rhizome / epiphyte plant usually used attached to hardscape, foreground, and midground.

Red Breasted Acara is a South American cichlid, so the pairing works best when the planting style supports how that fish uses space and cover.

Crepidomanes Fern reaches about 15 cm tall by 20 cm wide and is usually attached / wedged to hardscape with no substrate required. 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 and grazing surfaces. Place it where Red Breasted Acara 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 Breasted Acara, 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 Breasted Acara usually looks better with denser planting than this species provides on its own.

Best Use Case

Crepidomanes Fern is a strong choice for Red Breasted Acara 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 Crepidomanes Fern and Red Breasted Acara

Is Crepidomanes Fern a good plant for Red Breasted Acara?

Crepidomanes Fern is a strong fit for Red Breasted Acara. 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 Breasted Acara damage Crepidomanes Fern?

Red Breasted Acara usually looks better with denser planting than this species provides on its own.

Do Crepidomanes Fern and Red Breasted Acara share the same water conditions?

Crepidomanes Fern and Red Breasted Acara share a workable water window around 20 to 26 °C, pH 5.5 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 Crepidomanes Fern add to a tank with Red Breasted Acara?

Its structure adds useful refuge value beyond the normal visual role of the plant.

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

Red Breasted Acara usually looks better with denser planting than this species provides on its own.

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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