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Can Green Lily and Vesuvius Sword Grow Together?

Works with Planning

They can grow together, but it is not a plant-and-forget pairing. The shared water range is about 22 to 28 °C, pH 6 to 7.5, and 2 to 12 dGH. Plan the spacing, trimming rhythm, and shade control before planting so one species does not slowly crowd the other.

Green Lily

Nymphaea glandulifera

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PlacementMidground
LightModerate
DifficultyBeginner
Size35 × 25 cm

Vesuvius Sword

Helanthium bolivianum

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PlacementMidground
LightModerate
DifficultyIntermediate
Size25 × 10 cm

Quick Decision

Use this first pass to decide whether the pairing deserves a real place in the tank plan before you get into the full care details.

Overall fit

77/100

Viable, but only with more deliberate layout choices.

Water match

Workable overlap

Shared range: 22-28°C, pH 6-7.5, 2-12 dGH.

Layout pressure

Low crowding

Both use Midground and Background, so leave room before they mature.

Main watch-out

Caution

Both plants tend to work in the midground and background, so spacing matters more than usual.

Side-by-Side Planting Notes

The best coexistence pairings are not just plants with similar water ranges. They also need compatible mature size, feeding style, shade, and maintenance rhythm.

Placement
Green LilyMidground and Background
Vesuvius SwordMidground and Background

Shared placement: Midground and Background.

Mature size
Green Lily35 cm tall, 25 cm wide
Vesuvius Sword25 cm tall, 10 cm wide
Light and CO2
Green LilyModerate light, Added CO2 helps
Vesuvius SwordModerate light, Added CO2 helps

Light and CO2 expectations are close enough for one routine.

Planting and feeding
Green LilyBulb / tuber on or partly in substrate, Root feeder
Vesuvius SwordRooted in substrate, Root feeder
Water and flow
Green LilyFreshwater Only, Low (Still Water)
Vesuvius SwordFreshwater Only, Moderate (Standard)

Shared water overlap: 22-28°C, pH 6-7.5, 2-12 dGH.

Care rhythm
Green LilyModerate growth, Moderate maintenance
Vesuvius SwordFast growth, Moderate maintenance
Tank value
Green LilyProvides surface cover, Breaks lines of sight, Useful spawning site, and Good refuge for shrimp
Vesuvius SwordBreaks lines of sight and Good refuge for fry

Shared benefit: Breaks lines of sight.

Shared Environment

Green Lily and Vesuvius Sword share a workable water window around 22 to 28 °C, pH 6 to 7.5, and 2 to 12 dGH.

Both plants are comfortable in freshwater, so salinity is not a meaningful obstacle.

Flow is workable if the layout gives Green Lily gentle, low-flow water and Vesuvius Sword moderate flow.

Both fit moderate light and optional added CO2, so one lighting and CO2 plan can support the pair.

Layout and Spacing

Both plants naturally lean toward the midground and background, which is why spacing, pruning, and final mature size matter more than they do in a more staggered planting mix.

Green Lily reaches about 35 cm tall by 25 cm wide, while Vesuvius Sword reaches about 25 cm tall by 10 cm wide. Use those mature sizes for the layout, not the small nursery portions you bring home.

Shade is worth watching, but it is usually manageable through trimming and a little spatial separation.

Green Lily is typically bulb / tuber on or partly in substrate with nutrient-rich substrate preferred and feeds mainly as a root feeder. Vesuvius Sword is typically rooted in substrate with nutrient-rich substrate preferred and feeds mainly as a root feeder. That difference can make the pairing easier to arrange than two plants fighting for the exact same root or attachment zone.

Maintenance Outlook

Mature size is not the main thing working against this pairing, so normal maintenance is usually enough to keep the scape readable.

Green Lily brings moderate growth, moderate maintenance, and beginner difficulty. Vesuvius Sword brings fast growth, moderate maintenance, and intermediate difficulty. If one grows much faster, trim that plant before it starts making the other look like the problem.

The practical watch-outs are that both plants tend to work in the midground and background, so spacing matters more than usual; and that the layout needs a little thought so one plant does not slowly dim the other; and that growth pace and maintenance rhythm are uneven, so the stronger grower can dominate if pruning slips.

The strongest reasons to try the mix are that they share a workable temperature window around 22 to 28 °C; and that their flow preferences sit close enough to tune one layout around both plants.

Practical Recommendation

Use this pairing when you are willing to manage the scape, not when you want a plant-and-forget combination. Start with more spacing than you think you need, then adjust once both plants show their real growth pace.

The simple success test is whether both plants still look healthy after the faster grower has been trimmed several times. If one keeps declining after routine care, the layout is probably asking too much of it.

Frequently Asked Questions About Green Lily and Vesuvius Sword

Can Green Lily and Vesuvius Sword grow in the same aquarium?

They can grow together, but it is not a plant-and-forget pairing. The shared water range is about 22 to 28 °C, pH 6 to 7.5, and 2 to 12 dGH. Plan the spacing, trimming rhythm, and shade control before planting so one species does not slowly crowd the other.

What water conditions suit both Green Lily and Vesuvius Sword?

The shared water window is about 22 to 28 °C, pH 6 to 7.5, and 2 to 12 dGH. Keep the tank in the middle of that overlap instead of chasing the outer edge of either plant's tolerance.

Will Green Lily and Vesuvius Sword compete for the same space?

Yes, at least partly. Both plants are often used midground and background, so mature size, pruning rhythm, and shade control matter. Start them with visible separation instead of letting them meet on planting day.

Is light or CO2 the bigger challenge with this pairing?

Neither light nor CO2 is a major divider here compared with most mixed-plant pairings.

What is the main risk when keeping Green Lily with Vesuvius Sword?

Both plants tend to work in the midground and background, so spacing matters more than usual.


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