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Is Crepidomanes Fern a Good Plant for Neon Green Rasbora (Kubotai)?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Strong Fit

Crepidomanes Fern is a strong fit for Neon Green Rasbora (Kubotai). 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

View plant profile
PlacementAttached to hardscape
LightLow
DifficultyAdvanced
Size15 × 20 cm

Neon Green Rasbora (Kubotai)

Microdevario kubotai

View fish profile
TemperamentPeaceful
FamilyCyprinids
Temp20–27°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

92/100

The plant and fish suit each other well.

Water match

Workable overlap

Shared range: 20-26°C, pH 6-7.5, 2-10 dGH.

Plant pressure

Low

Neon Green Rasbora (Kubotai) 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
Neon Green Rasbora (Kubotai)20-27°C

Overlap: 20-26°C.

pH
Crepidomanes Fern5.5-7.5
Neon Green Rasbora (Kubotai)6-7.5

Overlap: pH 6-7.5.

Hardness
Crepidomanes Fern2-10 dGH
Neon Green Rasbora (Kubotai)2-10 dGH

Overlap: 2-10 dGH.

Water and flow
Crepidomanes FernFreshwater Only, Moderate (Standard)
Neon Green Rasbora (Kubotai)Freshwater Only, Moderate (Standard)

Flow expectations are close enough for one layout.

Space used
Crepidomanes FernAttached to hardscape, Foreground, and Midground
Neon Green Rasbora (Kubotai)Top (Surface) and Middle (Open Water)
Pressure signals
Crepidomanes FernModerate uproot resistance, Delicate leaves
Neon Green Rasbora (Kubotai)Peaceful, Nano / Bite-sized (Predation Risk), Hyperactive / Fast Swimmer, and Jumper (Lid Required)

Plant pressure: Low.

Planting value
Crepidomanes FernGood refuge for shrimp and Good grazing surface, No substrate required
Neon Green Rasbora (Kubotai)Plants - Densely covered, Plants - lighly covered, and Leaf Litter/Blackwater

Shared Tank Conditions

Crepidomanes Fern fits inside the water range normally used for Neon Green Rasbora (Kubotai). The shared window is about 20 to 26 °C, pH 6 to 7.5, and 2 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

Neon Green Rasbora (Kubotai) 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 lighter shade pattern fits fish that prefer a more open, brighter planting style.

The point to watch is neon Green Rasbora (Kubotai) 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.

Neon Green Rasbora (Kubotai) is a cyprinid, 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 Neon Green Rasbora (Kubotai) 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 Neon Green Rasbora (Kubotai), 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: Neon Green Rasbora (Kubotai) usually looks better with denser planting than this species provides on its own.

Best Use Case

Crepidomanes Fern is a strong choice for Neon Green Rasbora (Kubotai) 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 Neon Green Rasbora (Kubotai)

Is Crepidomanes Fern a good plant for Neon Green Rasbora (Kubotai)?

Crepidomanes Fern is a strong fit for Neon Green Rasbora (Kubotai). 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 Neon Green Rasbora (Kubotai) damage Crepidomanes Fern?

Neon Green Rasbora (Kubotai) usually looks better with denser planting than this species provides on its own.

Do Crepidomanes Fern and Neon Green Rasbora (Kubotai) share the same water conditions?

Crepidomanes Fern and Neon Green Rasbora (Kubotai) share a workable water window around 20 to 26 °C, pH 6 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 Neon Green Rasbora (Kubotai)?

Its lighter shade pattern fits fish that prefer a more open, brighter planting style.

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

Neon Green Rasbora (Kubotai) 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 6, 2026
Last updated
May 6, 2026
Issues or corrections?
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