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Is River Buttercup a Good Plant for Purple Spotted Gudgeon?

Reviewed by Guidarium Editorial DeskUpdated May 7, 2026
Strong Fit

River Buttercup is a strong fit for Purple Spotted Gudgeon. 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.

River Buttercup

Ranunculus inundatus

View plant profile
PlacementForeground
LightHigh
DifficultyIntermediate
Size15 × 20 cm

Purple Spotted Gudgeon

Mogurnda adspersa

View fish profile
TemperamentSemi-Aggressive
FamilyGobies & Gudgeons
Temp16–26°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: 20-26°C, pH 6.5-7.5, 8-12 dGH.

Plant pressure

Low

Purple Spotted Gudgeon is not flagged as unusually hard on this plant.

Layout value

Moderate cover

River Buttercup helps with good refuge for shrimp, good grazing surface, 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
River Buttercup20-28°C
Purple Spotted Gudgeon16-26°C

Overlap: 20-26°C.

pH
River Buttercup6-7.5
Purple Spotted Gudgeon6.5-8

Overlap: pH 6.5-7.5.

Hardness
River Buttercup2-12 dGH
Purple Spotted Gudgeon8-20 dGH

Overlap: 8-12 dGH.

Water and flow
River ButtercupFreshwater Only, Moderate (Standard)
Purple Spotted GudgeonFreshwater Only, Low (Still Water)

Flow expectations are close enough for one layout.

Space used
River ButtercupForeground, Carpeting, and Midground
Purple Spotted GudgeonBottom (Substrate) and Middle (Open Water)
Pressure signals
River ButtercupLow uproot resistance, Standard leaves
Purple Spotted GudgeonSemi-Aggressive, Piscivore (Eats small/nano fish), Shrimp Eater, and Fry Predator

Plant pressure: Low.

Planting value
River ButtercupGood refuge for shrimp, Good grazing surface, and Good refuge for fry, Nutrient-rich substrate preferred
Purple Spotted GudgeonPlants - Densely covered, Driftwood (Digestion/Hiding), and Smooth Gravel (Sensitive Barbels)

Shared Tank Conditions

River Buttercup fits inside the water range normally used for Purple Spotted Gudgeon. The shared window is about 20 to 26 °C, pH 6.5 to 7.5, and 8 to 12 dGH, which gives you enough room to aim for stable middle-ground conditions.

Their flow expectations are close enough to combine: River Buttercup prefers moderate flow, while Purple Spotted Gudgeon prefers gentle, low-flow water.

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

Fish Pressure and Plant Resilience

Purple Spotted Gudgeon does not put unusual pressure on this plant compared with harder fish-plant combinations.

River Buttercup has moderate cover density, low uproot resistance, and standard leaves. It can also help with shrimp refuge, grazing surfaces, and fry refuge.

Its structure adds useful refuge value beyond the normal visual role of the plant.

The point to watch is purple Spotted Gudgeon usually looks better with denser planting than this species provides on its own.

Layout Fit

River Buttercup is a stolon / runner plant usually used foreground, carpeting, and midground.

Purple Spotted Gudgeon is a goby or gudgeon, so the pairing works best when the planting style supports how that fish uses space and cover.

River Buttercup reaches about 15 cm tall by 20 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 shrimp refuge, grazing surfaces, and fry refuge. Place it where Purple Spotted Gudgeon 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 Purple Spotted Gudgeon, 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: Purple Spotted Gudgeon usually looks better with denser planting than this species provides on its own.

Best Use Case

River Buttercup is a strong choice for Purple Spotted Gudgeon 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 River Buttercup and Purple Spotted Gudgeon

Is River Buttercup a good plant for Purple Spotted Gudgeon?

River Buttercup is a strong fit for Purple Spotted Gudgeon. 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 Purple Spotted Gudgeon damage River Buttercup?

Purple Spotted Gudgeon usually looks better with denser planting than this species provides on its own.

Do River Buttercup and Purple Spotted Gudgeon share the same water conditions?

River Buttercup and Purple Spotted Gudgeon share a workable water window around 20 to 26 °C, pH 6.5 to 7.5, and 8 to 12 dGH. Keep the tank near the middle of that overlap for the best long-term result.

What does River Buttercup add to a tank with Purple Spotted Gudgeon?

Its structure adds useful refuge value beyond the normal visual role of the plant.

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

Purple Spotted Gudgeon 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 7, 2026
Last updated
May 7, 2026
Issues or corrections?
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