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Is Creeping Jenny a Good Plant for Iridescent Shark?

Strong Fit

Creeping Jenny is a strong fit for Iridescent Shark. 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.

Creeping Jenny

Lysimachia nummularia

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PlacementMidground
LightModerate
DifficultyBeginner
Size40 × 5 cm

Iridescent Shark

Pangasianodon hypophthalmus

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TemperamentMostly Peaceful
FamilyCatfish
Temp22–28°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

100/100

The plant and fish suit each other well.

Water match

Workable overlap

Shared range: 22-26°C, pH 6.5-7.5, 4-15 dGH.

Plant pressure

Low

Iridescent Shark is not flagged as unusually hard on this plant.

Layout value

Moderate cover

Creeping Jenny helps with breaks lines of sight and good refuge for fry.

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
Creeping Jenny10-26°C
Iridescent Shark22-28°C

Overlap: 22-26°C.

pH
Creeping Jenny6-8
Iridescent Shark6.5-7.5

Overlap: pH 6.5-7.5.

Hardness
Creeping Jenny4-15 dGH
Iridescent Shark2-20 dGH

Overlap: 4-15 dGH.

Water and flow
Creeping JennyFreshwater Only, Moderate (Standard)
Iridescent SharkFreshwater Only, Moderate (Standard)

Flow expectations are close enough for one layout.

Space used
Creeping JennyMidground and Background
Iridescent SharkMiddle (Open Water)
Pressure signals
Creeping JennyLow uproot resistance, Standard leaves
Iridescent SharkMostly Peaceful, Piscivore (Eats small/nano fish), Hyperactive / Fast Swimmer, and Jumper (Lid Required)

Plant pressure: Low.

Planting value
Creeping JennyBreaks lines of sight and Good refuge for fry, Inert substrate is fine
Iridescent SharkSmooth Gravel (Sensitive Barbels)

Shared Tank Conditions

Creeping Jenny fits inside the water range normally used for Iridescent Shark. The shared window is about 22 to 26 °C, pH 6.5 to 7.5, and 4 to 15 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

Iridescent Shark does not put unusual pressure on this plant compared with harder fish-plant combinations.

Creeping Jenny has moderate cover density, low uproot resistance, and standard leaves. It can also help with breaking up sight lines and fry refuge.

It gives Iridescent Shark useful visual shelter and line-of-sight breaks.

There is no special plant-pressure warning here, so solid anchoring and stable husbandry matter more than unusual protection.

Layout Fit

Creeping Jenny is a stem plant usually used midground and background.

Iridescent Shark is a catfish, so the pairing works best when the planting style supports how that fish uses space and cover.

Creeping Jenny reaches about 40 cm tall by 5 cm wide and is usually rooted in substrate with inert substrate is fine. 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 fry refuge. Place it where Iridescent Shark 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 Iridescent Shark, especially when you want the plant to do real work as cover, sight-line structure, or habitat detail.

The decision should center on layout quality: keep the plant in the zone where Iridescent Shark actually swims, shelters, or uses cover.

Frequently Asked Questions About Creeping Jenny and Iridescent Shark

Is Creeping Jenny a good plant for Iridescent Shark?

Creeping Jenny is a strong fit for Iridescent Shark. 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 Iridescent Shark damage Creeping Jenny?

Creeping Jenny is not especially vulnerable in this pairing compared with softer or more lightly rooted plants. Its standard leaves and low uproot resistance are the useful signals to watch.

Do Creeping Jenny and Iridescent Shark share the same water conditions?

Creeping Jenny and Iridescent Shark share a workable water window around 22 to 26 °C, pH 6.5 to 7.5, and 4 to 15 dGH. Keep the tank near the middle of that overlap for the best long-term result.

What does Creeping Jenny add to a tank with Iridescent Shark?

It gives Iridescent Shark useful visual shelter and line-of-sight breaks.

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

The main risk is assuming one plant can solve every layout need. Fish still need the right hardscape, open swimming room, and cover density for their normal behaviour.


Other Fish for Creeping Jenny

Other Plants for Iridescent Shark