Cryptocoryne affinis

Scientific name: Cryptocoryne affinis

Family: Araceae

Usual maximum size in aquariums: 15 - 30 cm (5.91 - 11.81 inch)

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Recommended pH range for the species: 6.8 - 7

Recommended water hardness (dGH): 4 - 18°N (71.43 - 321.43ppm)

0°C 32°F30°C 86°F

Recommended temperature: 22 - 26 °C (71.6 - 78.8°F)

Reproduction of the plant: Runners

Origin (in the wild): South Asia

How fast these plants grow: Normal

Recommended substrate: Gravel

Demands on lighting: Medium

Ideal placement in a fish tank: Middle

Common Name

Cryptocoryne Affinis

Origin

Cryptocoryne affinis originates from Southeast Asia, specifically in Malaysia and Thailand. It naturally thrives in slow-moving streams, rivers, and flooded areas, where it grows in nutrient-rich, soft substrates under shaded conditions.

Growing Conditions

Cryptocoryne affinis can grow both submerged in aquariums and emersed in high-humidity environments such as paludariums. When grown submerged, it reaches a height of 15 - 30 cm (5.91 - 11.81 inches) and is best suited for the midground of aquascapes. It thrives in a stable environment with a pH range of 6.8 to 7 and moderate water hardness between 4 - 18 dGH. The plant prefers a temperature range of 22 - 26 °C (71.6 - 78.8°F).

It grows best when planted in gravel substrate, which supports its extensive root system. Medium lighting is ideal, as too much light may encourage algae growth, while too little may slow its growth rate.

Lighting Requirements

Cryptocoryne affinis thrives in medium lighting. Excessive light exposure can lead to algae growth on its leaves, while insufficient light may result in slower growth. For optimal development, provide 8 - 10 hours of moderate light per day.

Planting Area

Due to its moderate height, Cryptocoryne affinis is best suited for the midground of an aquarium. It provides excellent contrast against taller background plants and shorter foreground species. When planted in clusters, it creates a lush, natural aquascape.

Propagation

Cryptocoryne affinis propagates through runners. The mother plant produces horizontal offshoots that develop into small plantlets. Once these plantlets have formed roots and several leaves, they can be separated and replanted in the aquarium to encourage further spread.

Difficulty

Cryptocoryne affinis is considered a medium-difficulty plant. It adapts well to different water conditions but is sensitive to sudden parameter changes. Like other Cryptocoryne species, it may experience Crypt melt if introduced to a new tank too soon. For best results, allow the aquarium to stabilize before adding this plant.

Short Description

Cryptocoryne affinis is a hardy, adaptable plant that adds depth and texture to aquariums. Its elongated, narrow leaves have a striking green coloration that can develop subtle red or bronze hues depending on lighting conditions. It can grow submerged in aquariums or emersed in high-humidity setups, making it a versatile choice for aquascaping.

Though relatively easy to care for, it should not be added to new tank setups, as it is prone to melting when exposed to fluctuating water conditions. With time and stable parameters, however, Cryptocoryne affinis establishes itself as a resilient and attractive aquatic plant.