Gratiola Viscidula Tropica

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Gratiola viscidula originates from Northern America and is relatively new to the aquatic hobby. The somewhat ‘thorny’ appearance of the submersed form makes it very distinct and easily recognizable.

It is quite easy to grow and prefers good light. By regular trimming it can be kept very low, almost carpeting, but will also present itself well as a fore/mid-ground cushion-plant. Each stem is approximately 1-2 cm wide and can become 10+ cm tall. The stem willingly branches and spreads giving a very dense appearance to the plant.

Type:    Stem

Origin:    North America (Country or continent where a plant is the most common. Cultivars arise or are bred in cultivation.)

Growth rate:    Slow (Growth rate of the plant compared to other aquatic plants.)

Height:    3 – 10+ (Average height (cm) of the plant after two months in the tank.)

Light demand:    Medium (The average or medium light demand of an aquarium plant is 0,5 W/L.)

CO2 :    Medium (A medium need in CO2 is 6-14 mg/L. A high demand in CO2 is approx. 15-25 mg/L.)


Tropica 1-2-Grow plants are very young plants cultivated and delivered directly from Tropica’s laboratory. The plants are guaranteed to be free from snails, algae and pesticides and therefore are totally harmless for sensitive shrimp and fish.


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