Cryptocoryne pygmaea

Pygmy Crypt Growing & Care Guide

Pygmy Crypt, or Cryptocoryne Pygmaea, is a beautiful, miniature foreground rosette native to slow streams in the Philippines. Staying under 2 inches tall and featuring narrow, dark green leathery leaves, it is a premium slow-growing foreground carpeting anchor that requires zero pruning and handles deep shade easily.

Lighting Low to Moderate

Water Parameter Aquatic (pH 6.0-7.8)

Substrate Nutrient-rich substrate / gravel

Water Temp 20°C - 28°C

Toxicity Pet Friendly (Non-toxic)

Botanical macro photography of Pygmy Crypt (Cryptocoryne pygmaea) - Plant AI care database

How to Identify Pygmy Crypt

Pygmy Crypt (Cryptocoryne pygmaea) has key botanical markers. Recognizing these features is crucial for successful aquascaping and thriving growth.

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Visual Shape & Growth: Extremely compact miniature rosette of narrow dark green leaves.
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Leaf Morphology: Tiny, linear-lanceolate leathery dark-green leaves (approx. 1-2 inches tall) rising from a creeping root crown.
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Root & Anchoring Structure: Stout, anchoring white roots that shoot deeply and hold tightly to the substrate.

💡 Plant AI Tip: Take a photo with Plant AI to identify aquatic weeds and diagnose fungal spot diseases in 1 second.

Complete Cultivation & Spawning Guide

Follow our detailed scientific water parameters and care guides to keep your Pygmy Crypt thriving.

pH: 6.0 - 7.8, GH: 4 - 15 dGH. Adaptable to soft or moderately hard freshwater setups.

Low. Grows perfectly without CO2. Supplemental liquid carbon can be dosed occasionally to assist growth.

Low to moderate lighting. High lighting will cover its large leaves with unsightly spot algae.

Cut away dead or algae-covered leaves at the stem base. Cut the main rhizome into sections with a sterilized blade to propagate.

A heavy root feeder. Requires nutrient-rich substrate. Insert root fertilizer tabs near the base every few months.

Plant in sand, gravel, or aquasoil. Ensure the green crown (base of leaves) is completely above the substrate.

Optimal temperature is 20°C to 28°C (68°F - 82°F). Sensitive to sudden cold water shocks during tank maintenance.

Enjoys moderate current. Steady water flow delivers essential water column nutrients to its opposite leafy rosettes.

Its tough texture and bitter taste make it highly resistant to plant-eating fish. Safe for community setups.

Slow growth makes it susceptible to hair algae. Keep water clean and employ Amano shrimps or Nerite snails.

Best planted in the foreground. Space individual crowns 1 to 2 inches apart to allow tight grouping.

Common Diseases & Treatment

Crypt Melt (Bacterial/Shock)

Symptoms: The stout green rhizome turns soft, black, and decomposes, losing all its leaves.

Action: Prune rotted tissue immediately, dip in dilute hydrogen peroxide, or discard infected specimens to prevent spread.

Crown Suffocation

Symptoms: Leaves rot at the base and float away.

Action: Caused by planting the crown too deeply in the gravel. Pull the plant upward until the green crown base is visible.

Frequently Asked Questions

Why is my Pygmy Crypt melting?

Crypts are highly sensitive to sudden changes in water chemistry or temperature. Overdosing chemicals or moving it to a vastly different tank will cause a massive leaf drop.

Can it grow out of water?

Yes! In high-humidity environments like terrariums or paludariums, it grows happily emersed, often producing beautiful flowers.

Why is my Pygmy Crypt losing leaves?

This is usually caused by burying the rhizome in substrate, which suffocates the plant. Always keep the creeping green rhizome above gravel or sand.

How fast does it grow?

Under moderate light and nutrients, it is a very slow grower, typically producing one new leaf every 10 to 14 days.