Repotting guide

When & how to repot Hygrophila lancea 'Araguaia' (Hygrophila lancea 'Araguaia')

Also called Araguaia hygro, lance hygrophila.

More about hygrophila lancea 'araguaia'

About Hygrophila lancea 'Araguaia'

Hygrophila lancea 'Araguaia' · also called Araguaia hygro, lance hygrophila · tropical

A fully submerged aquarium stem plant prized for narrow lance-shaped leaves that flush coppery-red to purple under strong light. A mid-to-background aquascaping plant, it rewards high-tech tanks with CO2 injection and rich substrate, growing compact and bushy. Slower than most hygrophilas, it stays manageable but needs stable parameters to hold its colour.

Mature size: Stems reach 15-30 cm tall; spreads via side shoots to form a clump 10-20 cm wide before trimming.

Watch for — Algae on slow new growth: Its slower pace lets spot and hair algae colonise leaves in unstable tanks. Improve flow, balance light to CO2, and keep nutrients consistent.

How to tell hygrophila lancea 'araguaia' needs repotting

Repotting on a calendar is less reliable than reading the plant. For hygrophila lancea 'araguaia', watch for these signs:

Roots poking out of the drainage holes or coiling visibly around the inside of the pot.
You are watering far more often than you used to because the rootball dries out within a day or two.
Water runs straight through and out the bottom without soaking in.
Top growth has slowed or new hygrophila lancea 'araguaia' leaves are noticeably smaller than older ones despite good light.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot hygrophila lancea 'araguaia'

Every 12–18 months — sooner if roots show fast. Hygrophila lancea 'Araguaia''s growth habit — upright, branching submerged stem plant that forms a dense bushy clump; comparatively slow and compact for a hygrophila, holding a tidy mound rather than racing to the surface. — sets the pace. A fully submerged aquarium stem plant prized for narrow lance-shaped leaves that flush coppery-red to purple under strong light. A mid-to-background aquascaping plant, it rewards high-tech tanks with CO2 injection and rich substrate, growing compact and bushy. Slower than most hygrophilas, it stays manageable but needs stable parameters to hold its colour.

What size pot to step hygrophila lancea 'araguaia' up to

Step up one pot size — about 2–3 cm (an inch) wider. Hygrophila lancea 'Araguaia' grows fast, so it will fill that space within a season, but jumping several sizes at once still backfires: the unused soil stays soggy and rots even a vigorous root system. One size at a time, every year or so, is the rhythm.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot hygrophila lancea 'araguaia'

Early spring, just as new growth restarts, is the ideal window for hygrophila lancea 'araguaia'. The plant is moving into its strongest growth phase and re-roots into fresh soil quickly. Avoid repotting in winter dormancy or, for flowering plants, while it is in bud or bloom — recovery is slowest then and you risk dropping the flowers.

Step-by-step: repotting hygrophila lancea 'araguaia'

Time it for spring. Repot hygrophila lancea 'araguaia' in early spring as growth restarts so it re-roots quickly into the fresh soil.
Choose one size up. Pick a pot about 2–3 cm wider with drainage holes. One step only — a much bigger pot stays soggy and rots roots.
Ease the plant out. Water lightly the day before, then tip hygrophila lancea 'araguaia' out and gently loosen any roots circling the bottom of the rootball.
Repot at the same depth. Put a layer of fresh nutrient-rich aquarium aquasoil substrate in the new pot, set the plant so its soil line is unchanged, and backfill, firming lightly.
Water and pause feeding. Water once to settle the soil. Hold off fertiliser for about a month — fresh mix already has nutrients and feeding now burns new roots.

Aftercare

Water hygrophila lancea 'araguaia' once to settle the soil, then let the surface dry before watering again — fresh mix around the roots stays wetter than the old compacted ball, so the commonest post-repot mistake is overwatering. Keep it out of direct sun for a week or two while roots re-establish. Do not fertilise for about 4 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for hygrophila lancea 'araguaia'

Hygrophila lancea 'Araguaia' wants nutrient-rich aquarium aquasoil substrate. Root in an active aquasoil (e.g. ADA Amazonia type) or fine gravel capped over nutrient base. It is a heavy root feeder, so a fertile substrate plus root tabs supports the best growth. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting hygrophila lancea 'araguaia' — frequently asked questions

How often should you repot hygrophila lancea 'araguaia'?

Every 12–18 months — sooner if roots show fast for hygrophila lancea 'araguaia'. Repot hygrophila lancea 'araguaia' roughly every 12–18 months, in early spring as growth restarts. It grows fast and circles its pot quickly, so step up one size (about 2–3 cm wider) into fresh nutrient-rich aquarium aquasoil substrate. Don't jump several sizes — that soggy excess soil is what rots vigorous roots.

What size pot does hygrophila lancea 'araguaia' need?

When is the best time of year to repot hygrophila lancea 'araguaia'?

Can you put hygrophila lancea 'araguaia' straight into a much bigger pot?

No. Even a fast-growing hygrophila lancea 'araguaia' should only go up one pot size at a time. A vastly oversized pot holds a reservoir of wet soil the roots cannot reach, which stays cold and soggy and rots the roots — the opposite of what you wanted.

Should you fertilise hygrophila lancea 'araguaia' after repotting?

Not immediately. Wait about 4 weeks after repotting hygrophila lancea 'araguaia'. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.