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Is River Buttercup a Good Plant for Pacific Sturgeon?

Reviewed by Guidarium Editorial DeskUpdated May 7, 2026
Not Recommended

River Buttercup is not recommended for Pacific Sturgeon. The issue is practical, not cosmetic: pacific Sturgeon is likely to uproot this plant while digging through the substrate.

River Buttercup

Ranunculus inundatus

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PlacementForeground
LightHigh
DifficultyIntermediate
Size15 × 20 cm

Pacific Sturgeon

Acipenser transmontanus

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TemperamentMostly Peaceful
FamilyOddballs
Temp10–22°C
Water TypeBrackish Tolerant

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

58/100

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

Water match

Workable overlap

Shared range: 20-22°C, pH 6.5-7.5, 4-12 dGH.

Plant pressure

High

Pacific Sturgeon may chew, uproot, or stress 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
Pacific Sturgeon10-22°C

Overlap: 20-22°C.

pH
River Buttercup6-7.5
Pacific Sturgeon6.5-8

Overlap: pH 6.5-7.5.

Hardness
River Buttercup2-12 dGH
Pacific Sturgeon4-20 dGH

Overlap: 4-12 dGH.

Water and flow
River ButtercupFreshwater Only, Moderate (Standard)
Pacific SturgeonBrackish Tolerant, High (River/Stream)

Flow expectations are close enough for one layout.

Space used
River ButtercupForeground, Carpeting, and Midground
Pacific SturgeonBottom (Substrate)
Pressure signals
River ButtercupLow uproot resistance, Standard leaves
Pacific SturgeonMostly Peaceful, Piscivore (Eats small/nano fish), Digger (Disturbs Substrate), and Hyperactive / Fast Swimmer

Plant pressure: High.

Planting value
River ButtercupGood refuge for shrimp, Good grazing surface, and Good refuge for fry, Nutrient-rich substrate preferred
Pacific SturgeonSand (Sifters) and Smooth Gravel (Sensitive Barbels)

Shared Tank Conditions

River Buttercup fits inside the water range normally used for Pacific Sturgeon. The shared window is about 20 to 22 °C, pH 6.5 to 7.5, and 4 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 Pacific Sturgeon prefers strong, stream-style flow.

Water type can work if the tank stays in the shared part of freshwater and freshwater to lightly brackish water conditions.

Fish Pressure and Plant Resilience

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

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 limiting issue is pacific Sturgeon is likely to uproot this plant while digging through the substrate.

Layout Fit

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

Pacific Sturgeon is an oddball fish, 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 Pacific Sturgeon 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: Pacific Sturgeon is likely to uproot this plant while digging through the substrate.

Best Use Case

River Buttercup is usually the wrong plant for Pacific Sturgeon 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 River Buttercup and Pacific Sturgeon

Is River Buttercup a good plant for Pacific Sturgeon?

River Buttercup is not recommended for Pacific Sturgeon. The issue is practical, not cosmetic: pacific Sturgeon is likely to uproot this plant while digging through the substrate.

Can Pacific Sturgeon damage River Buttercup?

Pacific Sturgeon is likely to uproot this plant while digging through the substrate.

Do River Buttercup and Pacific Sturgeon share the same water conditions?

River Buttercup and Pacific Sturgeon share a workable water window around 20 to 22 °C, pH 6.5 to 7.5, and 4 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 Pacific Sturgeon?

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?

Pacific Sturgeon 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 7, 2026
Last updated
May 7, 2026
Issues or corrections?
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