Care Guide

Family Name: Lythraceae

Nesaea Crassicaulis

Advanced difficulty

Care at a Glance

Lighting

Intense

Growth Rate

Moderately fast under good conditions

Growth Form

Stem

Placement

Mid-background with trimming

True Aquatic

Yes

Available As

Bunch

About This Plant

Ammannia crassicaulis has been sold under the generic name of Nesaea for some time. But that genus has been subsumed under the genus Ammannia. This is a lovely plant for the high light, CO2 enriched aquarium with good nutrient support. It is similar to Ammannia gracilis , though not as bright red, tending more toward a yellowish bronze color. The plant needs room to do well, so don’t pack stems in too tightly. Allow water movement and light to penetrate between the stems.

Quick-Reference Details

Common name: Family Name: Lythraceae
Scientific name: Nesaea Crassicaulis
Family: Lythraceae
Native to: Africa and Madagascar
Difficulty: Advanced
Requirements: Demanding
Lighting: Intense
Growth rate: Moderately fast under good conditions
Growth form: Stem
Placement: Mid-background with trimming
True aquatic: Yes
Available as: Bunch

Difficulty — Advanced

Performs best with strong lighting, CO2 supplementation, and stable water parameters. Not recommended as a first plant.

CO2 & Fertilization

Pressurized CO2 is strongly recommended at this light level — without it, algae will outcompete the plant.

Tank Size & Setup

Best in tanks 20 gallons or larger so background stems have room to grow up and be trimmed without overtaking the foreground.

Aquascaping & Placement

Place in the midground between foreground carpets and tall background stems. The structure adds visual depth and shelters small fish and shrimp. Trim and replant the tops every 3-4 weeks. The new growth tips hold the best color and form, while lower stems eventually need replacing.

Tank-Mate Compatibility

Compatible with the full range of community-tank species — tetras, rasboras, livebearers, corydoras, and most other peaceful freshwater fish do not damage the foliage.

Common Care Issues

Algae outbreaks

High-light plants without matched CO2 and nutrient dosing reliably trigger algae blooms. If you can't run pressurized CO2, choose a lower-light alternative or accept some algae management.

Outgrowing the tank

Plan to trim every 1-2 weeks. Skipping trims lets the plant shade out neighbors and trap detritus that fouls water quality.

Frequently Asked Questions

How much light does Family Name: Lythraceae need?

Family Name: Lythraceae (Nesaea Crassicaulis) prefers intense lighting. Plan on a high-output LED fixture combined with pressurized CO2 for the best color and form.

Does Family Name: Lythraceae need CO2?

Pressurized CO2 is strongly recommended at this light level — without it, algae will outcompete the plant.

Is Family Name: Lythraceae good for beginners?

Family Name: Lythraceae is rated advanced-level. Performs best with strong lighting, CO2 supplementation, and stable water parameters. Not recommended as a first plant.

How fast does Family Name: Lythraceae grow?

Growth rate is moderately fast under good conditions. Expect to trim every 1-2 weeks once established.

What fish and invertebrates are compatible with Family Name: Lythraceae?

Compatible with the full range of community-tank species — tetras, rasboras, livebearers, corydoras, and most other peaceful freshwater fish do not damage the foliage.