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Is Purple Bacopa a Good Plant for African Arowana?

Reviewed by Guidarium Editorial DeskUpdated May 2, 2026
Not Recommended

Purple Bacopa is not recommended for African Arowana. The issue is practical, not cosmetic: african Arowana is likely to uproot this plant while digging through the substrate.

Purple Bacopa

Bacopa salzmannii

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PlacementMidground
LightHigh
DifficultyIntermediate
Size35 × 5 cm

African Arowana

Heterotis niloticus

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TemperamentMostly Peaceful
FamilyOddballs
Temp24–30°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

68/100

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

Water match

Workable overlap

Shared range: 24-28°C, pH 6.5-7, 5-10 dGH.

Plant pressure

High

African Arowana may chew, uproot, or stress this plant.

Layout value

Moderate cover

Purple Bacopa helps with breaks lines of sight and good refuge for shrimp.

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
Purple Bacopa22-28°C
African Arowana24-30°C

Overlap: 24-28°C.

pH
Purple Bacopa5.5-7
African Arowana6.5-8

Overlap: pH 6.5-7.

Hardness
Purple Bacopa2-10 dGH
African Arowana5-15 dGH

Overlap: 5-10 dGH.

Water and flow
Purple BacopaFreshwater Only, Moderate (Standard)
African ArowanaFreshwater Only, Moderate (Standard)

Flow expectations are close enough for one layout.

Space used
Purple BacopaMidground and Background
African ArowanaMiddle (Open Water) and Bottom (Substrate)
Pressure signals
Purple BacopaLow uproot resistance, Standard leaves
African ArowanaMostly Peaceful, Digger (Disturbs Substrate), Jumper (Lid Required), and Hyperactive / Fast Swimmer

Plant pressure: High.

Planting value
Purple BacopaBreaks lines of sight and Good refuge for shrimp, Nutrient-rich substrate preferred
African ArowanaSand (Sifters) and Smooth Gravel (Sensitive Barbels)

Shared Tank Conditions

Purple Bacopa fits inside the water range normally used for African Arowana. The shared window is about 24 to 28 °C, pH 6.5 to 7, and 5 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.

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

Fish Pressure and Plant Resilience

African Arowana puts heavy pressure on plants, so this species is likely to be chewed, uprooted, or stressed in day-to-day use.

Purple Bacopa has moderate cover density, low uproot resistance, and standard leaves. It can also help with breaking up sight lines and shrimp refuge.

It gives African Arowana useful visual shelter and line-of-sight breaks.

The limiting issue is african Arowana is likely to uproot this plant while digging through the substrate.

Layout Fit

Purple Bacopa is a stem plant usually used midground and background.

African Arowana is an oddball fish, so the pairing works best when the planting style supports how that fish uses space and cover.

Purple Bacopa reaches about 35 cm tall by 5 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 shrimp refuge. Place it where African Arowana 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: African Arowana is likely to uproot this plant while digging through the substrate.

Best Use Case

Purple Bacopa is usually the wrong plant for African Arowana 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 Purple Bacopa and African Arowana

Is Purple Bacopa a good plant for African Arowana?

Purple Bacopa is not recommended for African Arowana. The issue is practical, not cosmetic: african Arowana is likely to uproot this plant while digging through the substrate.

Can African Arowana damage Purple Bacopa?

African Arowana is likely to uproot this plant while digging through the substrate.

Do Purple Bacopa and African Arowana share the same water conditions?

Purple Bacopa and African Arowana share a workable water window around 24 to 28 °C, pH 6.5 to 7, and 5 to 10 dGH. Keep the tank near the middle of that overlap for the best long-term result.

What does Purple Bacopa add to a tank with African Arowana?

It gives African Arowana useful visual shelter and line-of-sight breaks.

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

African Arowana is likely to uproot this plant while digging through the substrate.

Editorial Review

Guidarium Editorial Desk

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

Last reviewed
May 2, 2026
Last updated
May 2, 2026
Issues or corrections?
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