ロタラ / 赤系有茎草の育て方・育成ガイド

Rotala rotundifolia / Ludwigia palustris · Lythraceae (Rotala) / Onagraceae (Ludwigia)

ロタラ / 赤系有茎草(Rotala rotundifolia / Ludwigia palustris)は水草です。 Lythraceae (Rotala) / Onagraceae (Ludwigia)科に属します。 原産地はRotala rotundifolia: Himalaya and India through Indo-China to southern China, Taiwan and southern Japan; Ludwigia palustris: near-worldwide in temperate and subtropical wetlandsです。 光量はmediumを必要とします。 適正水温:20°C – 28°C。 適正pH:5.0 – 8.0。 育成難易度:Easy。 生長速度:早い。

ロタラ / 赤系有茎草の育て方・育成方法は?

光量Medium (both grow in low light; strong light, about 0.5 – 1 W/L, is only needed for red/orange tips and compact growth)
CO₂Helpful (low demand; CO₂ deepens the red)
水温20°C – 28°C
pH5.0 – 8.0
配置Midground & background in groups (suits Dutch layouts)
生長速度早い
難易度Easy
科名Lythraceae (Rotala) / Onagraceae (Ludwigia)

ロタラ / 赤系有茎草のトリミングや増やし方は?

Cut the longest shoots just above a leaf pair and replant the tops into the group; the stump sprouts side shoots and the bush gets denser. Trim little and often — heavy cuts can upset the tank's balance, and frequent pruning keeps the lower leaves alive.

ロタラ / 赤系有茎草によくあるトラブルや病気は?

Bare, leafless lower stems from the tops shading the base; green instead of red tops from too little light or high nitrate; hair/thread algae on the tops from nutrient imbalance; pale, stunted new growth from a micronutrient/iron shortage.

ロタラ / 赤系有茎草のトラブルや枯れへの対処法は?

Trim more often, replanting the tops and discarding leggy bases; raise light, add CO₂ and keep nitrate modest; regular water changes and Amano shrimp for algae; dose micronutrients.

ロタラ / 赤系有茎草の原産地や生息地は?

Rotala rotundifolia: Himalaya and India through Indo-China to southern China, Taiwan and southern Japan; Ludwigia palustris: near-worldwide in temperate and subtropical wetlands (the Americas, Europe, Africa, West Asia) · 生息地域(バイオトープ):South America。

ロタラ / 赤系有茎草を購入する前に知っておくべきことは?

Rotala rotundifolia is naturalised in Florida, Alabama, south-eastern Brazil and Queensland — never discard trimmings into natural waterways.

出典

  1. Rotala rotundifolia — Tropica Aquarium Plants
  2. Ludwigia palustris 'Super Red' — Tropica Aquarium Plants
  3. Rotala rotundifolia — Flowgrow aquatic plant database
  4. Ludwigia palustris — Flowgrow aquatic plant database
  5. Rotala rotundifolia distributions (WCVP, Kew) — GBIF / WCVP
  6. Ludwigia palustris distributions (WCVP, Kew) — GBIF / WCVP
  7. Trimming — Tropica guide
  8. Planting — Tropica guide
  9. Fertiliser and CO2 — Tropica guide
  10. Light — Tropica guide
  11. Types of algae — Tropica guide

育成情報は 2026-09-23 にこれらの出典と照合しました。

ロタラ / 赤系有茎草が使われるレイアウトや水槽は?

ロタラ / 赤系有茎草を使った3Dレイアウトを見るには?

最終更新日: · インタラクティブ3Dガイドを開く · すべての水草・生体ガイド一覧