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Is Robinson's Aponogeton a Good Plant for Red Peacock (Ruby Red)?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Robinson's Aponogeton is not recommended for Red Peacock (Ruby Red). The issue is practical, not cosmetic: their pH ranges do not line up well enough for one stable setup.

Robinson's Aponogeton

Aponogeton robinsonii

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PlacementBackground
LightModerate
DifficultyBeginner
Size60 × 25 cm

Red Peacock (Ruby Red)

Aulonocara sp. 'Rubescens'

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TemperamentSemi-Aggressive
FamilyCichlids - African
Temp24–28°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

56/100

The fish is likely to outgrow, uproot, or out-pressure the plant.

Water match

Limited overlap

One or more core water ranges does not overlap cleanly.

Plant pressure

Moderate

Robinson's Aponogeton needs thoughtful placement and anchoring.

Layout value

Moderate cover

Robinson's Aponogeton helps with provides surface cover, 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
Robinson's Aponogeton20-28°C
Red Peacock (Ruby Red)24-28°C

Overlap: 24-28°C.

pH
Robinson's Aponogeton6-7.5
Red Peacock (Ruby Red)7.8-8.6

Overlap: pH No clean overlap.

Hardness
Robinson's Aponogeton4-12 dGH
Red Peacock (Ruby Red)10-25 dGH

Overlap: 10-12 dGH.

Water and flow
Robinson's AponogetonFreshwater Only, Low (Still Water)
Red Peacock (Ruby Red)Freshwater Only, Moderate (Standard)

Flow expectations are close enough for one layout.

Space used
Robinson's AponogetonBackground
Red Peacock (Ruby Red)Middle (Open Water) and Bottom (Substrate)
Pressure signals
Robinson's AponogetonHigh uproot resistance, Standard leaves
Red Peacock (Ruby Red)Semi-Aggressive, Digger (Disturbs Substrate), Fry Predator, and Territorial (Defends specific area)

Plant pressure: Moderate.

Planting value
Robinson's AponogetonProvides surface cover, Breaks lines of sight, and Useful spawning site, Nutrient-rich substrate preferred
Red Peacock (Ruby Red)Sand (Sifters) and Smooth Gravel (Sensitive Barbels)

Shared Tank Conditions

Robinson's Aponogeton and Red Peacock (Ruby Red) do not share a clean environmental window, so the pairing is already under pressure before behaviour is even considered.

Their flow expectations are close enough to combine: Robinson's Aponogeton prefers gentle, low-flow water, while Red Peacock (Ruby Red) prefers moderate flow.

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

Fish Pressure and Plant Resilience

Red Peacock (Ruby Red) can still be rough on plants, but this pairing becomes more realistic when the plant is anchored well and used as part of a larger layout.

Robinson's Aponogeton has moderate cover density, high uproot resistance, and standard leaves. It can also help with surface cover, breaking up sight lines, and spawning sites.

The plant helps break up sight lines, which can soften territorial behaviour.

The limiting issue is their pH ranges do not line up well enough for one stable setup.

Layout Fit

Robinson's Aponogeton is a bulb / tuber plant usually used background.

Red Peacock (Ruby Red) is an African cichlid, so the pairing works best when the planting style supports how that fish uses space and cover.

Robinson's Aponogeton reaches about 60 cm tall by 25 cm wide and is usually bulb / tuber on or partly 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 surface cover, line-of-sight breaks, and spawning sites. Place it where Red Peacock (Ruby Red) can actually use that structure instead of hiding the plant where it cannot do much.

Practical Recommendation

For most keepers, a tougher or better-matched plant is the smarter choice. If you still try it, test with a small amount first and be ready to move the plant before it is badly damaged.

The decision should center on this signal: Their pH ranges do not line up well enough for one stable setup.

Best Use Case

Robinson's Aponogeton is usually the wrong plant for Red Peacock (Ruby Red) if your goal is a stable display tank. The issue is rarely one dramatic failure on day one; it is the steady mismatch between what the fish does in the scape and what the plant needs to stay attractive long term.

Frequently Asked Questions About Robinson's Aponogeton and Red Peacock (Ruby Red)

Is Robinson's Aponogeton a good plant for Red Peacock (Ruby Red)?

Robinson's Aponogeton is not recommended for Red Peacock (Ruby Red). The issue is practical, not cosmetic: their pH ranges do not line up well enough for one stable setup.

Can Red Peacock (Ruby Red) damage Robinson's Aponogeton?

Their pH ranges do not line up well enough for one stable setup.

Do Robinson's Aponogeton and Red Peacock (Ruby Red) share the same water conditions?

No. The biggest issue is that their water conditions do not line up cleanly enough for a long-term planted setup.

What does Robinson's Aponogeton add to a tank with Red Peacock (Ruby Red)?

The plant helps break up sight lines, which can soften territorial behaviour.

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

Their pH ranges do not line up well enough for one stable setup.

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
Issues or corrections?
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