Back to Mint Charlie fish guides

Is Mint Charlie a Good Plant for Midnight Catfish?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Strong Fit

Mint Charlie is a strong fit for Midnight Catfish. 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.

Mint Charlie

Clinopodium brownei

View plant profile
PlacementMidground
LightModerate
DifficultyBeginner
Size30 × 10 cm

Midnight Catfish

Auchenipterichthys coracoideus

View fish profile
TemperamentMostly Peaceful
FamilyCatfish
Temp23–28°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

90/100

The plant and fish suit each other well.

Water match

Workable overlap

Shared range: 23-28°C, pH 6-7.5, 4-15 dGH.

Plant pressure

Low

Midnight Catfish is not flagged as unusually hard on this plant.

Layout value

Moderate cover

Mint Charlie 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
Mint Charlie15-28°C
Midnight Catfish23-28°C

Overlap: 23-28°C.

pH
Mint Charlie6-7.5
Midnight Catfish6-7.5

Overlap: pH 6-7.5.

Hardness
Mint Charlie4-15 dGH
Midnight Catfish2-15 dGH

Overlap: 4-15 dGH.

Water and flow
Mint CharlieFreshwater Only, Moderate (Standard)
Midnight CatfishFreshwater Only, Low (Still Water)

Flow expectations are close enough for one layout.

Space used
Mint CharlieMidground and Background
Midnight CatfishBottom (Substrate) and Middle (Open Water)
Pressure signals
Mint CharlieLow uproot resistance, Standard leaves
Midnight CatfishMostly Peaceful, Nocturnal, Shy / Slow Moving (Easily Stressed), and Piscivore (Eats small/nano fish)

Plant pressure: Low.

Planting value
Mint CharlieBreaks lines of sight and Good refuge for fry, Inert substrate is fine
Midnight CatfishDriftwood (Digestion/Hiding) and Plants - Densely covered

Shared Tank Conditions

Mint Charlie fits inside the water range normally used for Midnight Catfish. The shared window is about 23 to 28 °C, pH 6 to 7.5, and 4 to 15 dGH, which gives you enough room to aim for stable middle-ground conditions.

Their flow expectations are close enough to combine: Mint Charlie prefers moderate flow, while Midnight Catfish prefers gentle, low-flow water.

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

Fish Pressure and Plant Resilience

Midnight Catfish does not put unusual pressure on this plant compared with harder fish-plant combinations.

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

This plant adds the denser cover that Midnight Catfish usually appreciates.

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

Layout Fit

Mint Charlie is a stem plant usually used midground and background.

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

Mint Charlie reaches about 30 cm tall by 10 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 Midnight Catfish 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 Midnight Catfish, 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 Midnight Catfish actually swims, shelters, or uses cover.

Best Use Case

Mint Charlie is a strong choice for Midnight Catfish 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 Mint Charlie and Midnight Catfish

Is Mint Charlie a good plant for Midnight Catfish?

Mint Charlie is a strong fit for Midnight Catfish. 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 Midnight Catfish damage Mint Charlie?

Mint Charlie 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 Mint Charlie and Midnight Catfish share the same water conditions?

Mint Charlie and Midnight Catfish share a workable water window around 23 to 28 °C, pH 6 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 Mint Charlie add to a tank with Midnight Catfish?

This plant adds the denser cover that Midnight Catfish usually appreciates.

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.

Editorial Review

Guidarium Editorial Desk

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

Last reviewed
May 6, 2026
Last updated
May 6, 2026
Issues or corrections?
Contact the editorial team

Other Fish for Mint Charlie

Other Plants for Midnight Catfish